know how to use a punnet square to determine the probability of obtaining certain genotypes in a genetic cross. know what is used to construct a punnet square.
Answers
It uses diagrammatic squares to calculate or forecast every possible allele combination that could appear in a particular cross' offspring. These are the following steps to create Punnett square.
The genotype (genetic make-up) and phenotype (observable features) of kids produced by a parental generation are predicted by biologists using Punnett squares. Punnett squares may usually be assembled in less than 10 minutes and used to answer a simple genetics question.
What you require:
Pen or Chalk
Paper or Board
basic understanding of algebra
Step one: Understand the genotypes
Look at the problem to see if the parents are homozygous recessive, dominant, or heterozygous in order to discover the genotypes that are being crossed. Two lowercase letters are used to represent the homozygous recessive parents. Two capital letters can represent parents who are homozygous for the dominant gene. A heterozygous parent would be represented by one capital and one lowercase letter using the same letters as in the preceding examples.
Step 2 Create Punnett square
The Punnett square is a sizable square with four boxes on it. It's crucial to reserve space on the Punnett square's top and left side for use in a subsequent phase.
Step 3 Add data in Punnett square:
Assign a side of the Punnett square to each paternal genotype to label the square. Depending on the side you have picked for each parent, each allele of each genotype needs to be placed either above or beside a box.
Step 4 cross breeding:
The letters at the top of the Punnett square should go in the two boxes directly below them, and the letters at the left of the square should go in the boxes on the right. The resulting boxes that contain two alleles are an example of potential progeny.
Step 5 Read the results
There are three possible offspring results when performing straightforward Punnett squares: heterozygous, homozygous dominant, and homozygous recessive. Find the phenotypes by examining these results. Offspring of dominant parents who are homozygous or heterozygous will both display the dominant phenotype. Recessive phenotypes will manifest in homozygous recessive progeny.
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Related Questions
short-term; elaborative
Both elaborative and maintenance rehearsal keep information active in ____ memory but ____ rehearsal is more effective in transferring information to long-term memory.
Answers
Both elaborative and maintenance rehearsal keep information active in short-term memory but elaborative rehearsal is more effective in transferring information to long-term memory.
Maintenance or elaborate rehearsal, which is more efficient?For long-term memory retention, elaborate rehearsal is more beneficial. You are more likely to have a stronger long-term retention rate by using memory aids, such as grouping, using visuals, or quizzing yourself on the material you need to learn, than you would if you employed maintenance rehearsal.
Maintenance rehearsal is what kind of memory?instantaneous recall
Maintaining knowledge in working memory or short-term memory is facilitated by the memory rehearsal technique known as maintenance rehearsal..
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when a person is running in a 5k race and their body is using the oxygen energy system to extract energy, from which source(s) can energy be produced?
Answers
Source of energy can be from fat and glucose. Exertion spurs your body to produce more mitochondria inside your muscle cells.
What is mitochondria?
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae). This means your metabolism will stay elevated for longer after a vigorous exercise session. More weight loss. A higher calorie burn and an elevated metabolism will help you lose weight more quickly than doing low- or moderate-intensity exercise. Improved heart health.
Mitochondria are known as the powerhouses of cells, because they create fuel out of glucose from the food you eat and oxygen from the air you breathe. Having more of them increases your body's energy supply.
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The structure of nucleic acids, DNA and RNA, differ in that
STILL SINGLE? ALWAYS,
DNA
RNA
Dueauke
a
DNA's nucleotide sequence is single stranded, while RNA's nucleotide sequence is double stranded.
b
RNA contains only three different nucleotides, while DNA contains four different nucleotides.
C
DNA contains a nucleotide with thymine, while RNA contains a nucleotide with uracil.
d
RNA's backbone is made up of phosphates, while DNA's backbone is made up of nitrates.
Answers
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
DNA and RNA are different from their structure, functions, and stabilities. DNA has four nitrogen bases adenine, thymine, cytosine, and guanine and for RNA instead of thymine, it has uracil. Also, DNA is double-stranded and RNA is single-stranded which is why RNA can leave the nucleus and DNA can't.
Summary of Differences Between DNA and RNA
DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans
Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called.
Answers
In the ecosystem, mushrooms and other fungi are responsible for breaking down dead organic matter and they are known as decomposers.
What are decomposers?Decomposers, decompose dead or decaying organic matter. They carry out decomposition, a process only possible in certain kingdoms such as fungi. Microorganisms that convert dead plants and animals into humus are called decomposers. example: fungi and bacteria. Decomposers recycle dead matter and transform it into humus. Humus mixes with the forest soil and provides the nutrients the plants need.
Fungi are important decomposers, especially in forests. Some fungi, such as mushrooms, look like plants. Mushrooms, however, do not contain chlorophyll, the pigment that green plants use to use the energy of sunlight to make their own food. They are called decomposers because they break down into substances. returns nutrients to the soil.
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Which is a point mutation and not a frameshift?.
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An insertion or deletion of a nucleotide base that alters the reading frame is known as a frameshift mutation.
A point mutation only affects one amino acid and does not alter the frame.
The reading frame may or may not move as a result of the insertion or deletion of a nucleotide or combination of nucleotides. The mutation is referred to as a non-frameshift mutation if it does not result in a shift in the reading frame.
The addition or deletion of certain nucleotide base-pairs from the DNA molecule is referred to as an insertion or deletion.
The reading frame may or may not move as a result of the insertion or deletion of a nucleotide or combination of nucleotides. The mutation is referred to as a non-frameshift mutation if it does not result in a shift in the reading frame.
On the other hand, a mutation is known as a frameshift mutation if the reading frame does shift. Where it occurs will determine how it changes.
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which is the process by which some experiences, held temporarily by transient modifications of neurons, are selected for permanent storage in long-term memory? choose the correct option.
Answers
The method by which certain experiences, held momentarily by fleeting changes in neurons, are chosen for long-term preservation in memory is memory consolidation. Memory consolidation is a time-dependent process by which recently learned experiences are converted into long-term memory, possibly through structural and chemical changes in the nervous system.
what is nervous system?
The brain, spinal cord, and a sophisticated nerve network constitute the nervous system. The brain and the body communicate with the help of this system. The brain manages all the functions of body. From the brain, the spinal cord descends through the back.
What is spinal cord?
The spinal cord is a tube like band made up of tissue that carries the nervous signals from the brain to the body organs.
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g which one of the following is not involved in the reactions of glycolysis between glyceraldehyde-3-phosphate and 3-phosphoglycerate? i. use of inorganic phosphate. ii. catalysis by a kinase enzyme. iii. the formation of a high energy intermediate. iv. oxidation of nadh. v. generation of atp
Answers
Oxidation of Nadh is not involved in the reactions of glycolysis between glyceraldehyde-3-phosphate and 3-phosphoglycerate.
The oxidation of glyceraldehyde-3-phosphate by NAD+ generates NADH, i.e. NAD+ is reduced in this step.
What do you know about oxidation?
Oxidation is the loss of electrons during a reaction by a molecule, atom or ion.
Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.
An example of a reaction is that between hydrogen and fluorine gas to form hydrofluoric acid:
H2 + F2 → 2 HF
In this reaction, hydrogen is being oxidized and fluorine is being reduced. The reaction may be better understood if it is written in terms of two half-reactions.
H2 → 2 H+ + 2 e-
F2 + 2 e- → 2 F-
Note there is no oxygen anywhere in this reaction!
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the first group of animals to colonize land was likely a(n) [ select ] , followed by [ select ] about 1 million years later and evolving into the group of largely terrestrial [ select ] found today.
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The first group of animals to colonize on land was likely an Arthropoda, followed by lobe fin fishes about 1 million years later and evolving into the group of largely terrestrial Tetrapod's found today.
The first set of animals to colonize or live together to form a habitat was myriapods, commonly now called as Arthropoda almost 450 million years ago. Example : Millipedes and centipedes. It is then said that later, the first arthropod evolved to live on the land in following years.
Following this, the four-limbed tetrapod evolved from the lobe fin fishes which colonized 1 million years ago.
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Jackie Jones is a finance manager for Pretty Poseys, a wholesale florist. As finance manager, which of the following would be one of Jackie's responsibilities?
a) Preparing tax returns
b) Preparing financial statements
c) Planning for spending funds on long-term assets, such as plant and equipment
d) Production planning and resource development
Answers
As a finance manager, one of the responsibilities of Jackies will be c) Planning for spending funds on long-term assets, such as plant and equipment.
As a finance manager, it is the responsibility of the manager to assess the finances of an organization and plan on expenditures that can be spent on long-term assets that would be useful to the organization.
As Jackie Jones is the finance manager, it is his responsibility to plan on how the Pretty Poseys should spend revenue or funds for assets that will be beneficial in the long term to the organization.
Plants, types of equipment required for planting, etc are all the things that the finance manager would plan for spending the funds on.
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A person eats a piece of food that is contaminated by bacteria. Which response will most quickly remove the bacteria from the body?.
Answers
If someone eats a piece of food that is tainted with bacteria, vomiting would immediately rid the body of the bugs.
What impact does bacteria have on the body of a human?
Single-celled organisms known as bacteria are living things. Under a microscope, they resemble rods, balls, or spirals. They are so little that a line of 1,000 of them might fit across a pencil's eraser. Most won't give you any health problems. Numerous sorts are advantageous. Some of them aid in food digestion, deliver vital vitamins to the body, and get rid of disease-causing cells. Additionally, bacteria are used to produce wholesome foods like cheese and yoghurt.
However, infectious bacteria can also make you sick. They quickly proliferate inside of your body.
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passive immunity differs from active immunity in that passive immunity . question 30 options: involves the administration of preformed antibodies causes long-term immunity results in the production of memory cells is not effective against a preexisting condition
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Passive immunity differs from active immunity in a way that passive immunity involves the administration of preformed antibodies.
What is an active and passive immunity?Active immunity is a form of immunity when antibodies are created in response to a particular antigen. To manufacture enough antibodies to combat the infection, this sort of immunity needs time to develop. Long-lasting and more potent, this immunological reaction. It causes an immunological memory that lasts a lifetime. It boosts bodily resistance and is used as prophylactic. Antibodies used in passive immunity are sourced from sources outside the body. One illustration is antibodies acquired from the mother through breast milk. This immunological reaction is ineffective and passes quickly. It lacks any immunological memory. It is employed to treat acute infections.
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The complete question is as follows:
Passive immunity differs from active immunity in that passive immunity
A) causes long-term immunity.
B) involves the administration of preformed antibodies.
C) results in the production of antibodies.
D) is not effective against a preexisting condition.
E) results in the production of memory cells.
The overall error rate in the completed dna molecule is approximately __________.
Answers
The overall error rate in the completed DNA molecule is approximately 10⁻⁹ to 10⁻¹¹ errors per base pair. Errors can occur in the DNA at different stages.
What is the error in DNA?The errors in the DNA include replication errors, depurination of DNA, and the damage to DNA by the generation of active-oxygen species in the cell. Each of these processes occur more frequently than the rate of mutagenesis in the somatic cells of the body, but are repaired by different and overlapping correction mechanisms.
Overall, the DNA polymerase III enzyme is a highly processive enzyme which incorporates about 600 to 1,000 bases per second in the DNA with greater that 100,000 bases being incorporated per binding event in the DNA, with an error rate of approximately 1 per million.
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you count 60 onion cells in different stages of mitosis. of those 60, 19 are in prophase, 14 in metaphase, 12 in anaphase, and 15 in telophase. if a full cycle is 24 hours (1440 minutes), which stage has the longest duration and how long is it in minutes?
Answers
Using the ratio concept, prophase, which lasts 456 minutes, is the longest stage.
How to determine the Mitosis stage?The following formula can be used to determine how long each Mitosis stage lasts:
Total time spent = (Number of onions per step / total onions).
Total time spent = (60 x 24) = 1440 minutes in 24 hours.
Duration of each stage:
Anaphase:
(12/60) x 440=288 minutes
Prophase:
19/60 times 1440 equals 456 minutes.
Metaphase:
(14/60) x 1440 equals 336 minutes.
Telophase:
15 / 60 equals 1440 minutes.
Therefore, because of this, the prophase stage has the longest length, lasting 456 minutes.
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Lactic acid fermentation is a type of anaerobic respiration that occurs in organisms such as.
Answers
Lactic acid fermentation is an anaerobic respiration process that occurs in animals.
What is anaerobic respiration?Anaerobic respiration is the process by which cells break down sugars to produce energy in the absence of oxygen. In contrast, aerobic respiration, which uses oxygen to produce energy, is a highly efficient process. Because of its high electron affinity, molecular oxygen is the most efficient electron acceptor for respiration. Some organisms, however, have evolved to use other final electron acceptors and, as a result, can respire without oxygen.
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true or false: moist conditions favor bacterial growth. therefore, many food preservatives work to decrease moisture content of foods.
Answers
true....................
Amylase is a protein that catalyzes the conversion of starch to simple sugars. Amylase activity in an aqueous solution can be measured by using iodine as a starch indicator. A solution containing iodine and starch will have a dark-blue color, whereas a solution containing iodine but no starch will have a light-brown color. The color change of an iodine solution from dark blue to light brown can be used to measure the rate at which starch is converted to simple sugars.
A student designs an experiment to investigate the effect of environmental pH on amylase function. The design of the experiment is presented in Table 1.
Which of the following statements best justifies the inclusion of test tube V as a control in the experiment?
It will show the color change that occurs in the absence of enzyme activity.
Answers
When a student devises a research to investigate the impact of environmental pH on amylase function, he or she is a scientist. The incorporation of test tube V as a control in the experiment is best justified by the following statements:
It will display the color change that occurs when enzyme activity is absent.
The rate of chemical reactions is affected by modifications in the structure of the enzyme. The shape and structure of the enzyme will alter as the pH of the reaction mixture changes. The ionization state of acidic or basic amino acids, for example, can be influenced by pH.
The pH scale is utilized to evaluate whether a specimen is acidic or alkaline, as well as to describe the level of hydrogen ions or hydroxides. The ionization of amino acid atoms and molecules as a result of pH changes significantly changes the shape and structure of proteins, affecting their function. Enzymes are proteins that are also affected by pH changes. When the pH is too too high or too low, most enzymes lose activity. The optimal pH is the one where the enzyme is most involved.
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what is the basis for the difference in how the leading and lagging strands of dna molecules are synthesized? group of answer choices
Answers
Because only the 3' end of the template strand receives additional nucleotides from DNA polymerase.
The DNA molecule has two strands. Leading is the name given to one of the strands, which is continually reproduced in the direction of the fork (3'–5'). The other strand is known as the lagging strand and it replicates in a discontinuous manner (5'-3' direction toward the fork). These two strands are free when DNA helicase opens the replication fork, waiting for complementary nucleotides. However, only the 3' end of the template strand receives additional nucleotides from DNA polymerase. DNA polymerase may easily add nucleotides at the 3' end toward the 5' end (direction 3' to 5') because the leading strand's free end is at the 3' end.
DNA polymerase cannot begin from the lagging strand's 5' free end because it is not free. As a result, replication begins in various locations along the lagging strand so that DNA polymerase can add nucleotides from the 3' end to the 5' end.
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Enuring that manager operate firm in the bet interet of the owner rather than themelve i called ____________. Group of anwer choice
managerialim
comparative advantage
takeover theory
the principal-agent problem
Answers
A conflict of interests between such a person or group and the agent appointed to act on their behalf is known as the principal-agent dilemma.
Moral hazard in economics refers to when one person takes additional risks because those risks are paid for by another. You enrol in health insurance, and since your injuries will be covered by someone else's policy, you choose to start BASE jumping.
Stewardship theory contends that there is no conflict of interest between management and company shareholders. The goals of shareholders and all other stakeholders are achieved in line with the interests of the two parties.
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Is it true that mutations are always harmful?.
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It is false that mutations are always harmful. Depending on the context or location in which they occur, mutational effects can be beneficial, detrimental, or neutral. The majority of non-neutral mutations are harmful.
Mutations have the potential to be beneficial or harmful, despite the fact that they are typically viewed negatively. Haemophilia and sickle cell anemia are well-known examples of harmful mutations. However, mutations may also be advantageous. It is said that lactose intolerance originated in humans. Human infants, like the majority of other mammals, have been able to produce the enzyme lactase, which helps them digest lactose, the sugar in milk. As they become older, most people steadily lose the capacity to process lactose, while certain people keep on having the option to process it through adulthood.
It is believed that the consumption of cow's milk as a food source increased with the spread of agricultural practices. People gradually became "lactose tolerant" as a result of a mutation in the gene that codes for the enzyme lactase. This mutation spread throughout various human populations, providing them with the ability to digest lactose. As a result, one example of a beneficial mutation is lactose tolerance.
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cells must move materials through membranes and throughout cytoplasm in order to maintain homeostasis. the movement is regulated because cellular membranes, including the plasma and organelle membranes, are selectively permeable. membranes are phospholipid bilayers containing embedded proteins. the phospholipid fatty
Answers
It is selectively permeable, the plasma membrane allows only certain substances to pass through. Hydrophilic and polar molecules are brought into the cell by proteins embedded within the plasma membrane.
The internal medium for cell transport is the cytoplasm. Vesicle facilitates macromolecule import and export.
What must enter a cell in order to maintain homeostasis?The majority of cells, for instance, require glucose and oxygen to generate energy.Additionally, cells must eliminate waste materials like excess water and carbon dioxide.By controlling which substances enter and leave the cell, the plasma membrane contributes to the maintenance of homeostasis.
How is it that transport across the cell membrane keeps cells in homeostasis?Homeostasis is maintained by the cell membrane in three primary ways: allowing the membrane to move fluidly. regulating osmosis, or the process by which water moves from high to low concentration. maintaining particular ion concentrations.
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the order (fill in the blank) was named because the discovering entomologist had just watched the movie gladiator.
Answers
The order Mantophasmatodea was named because the discovering entomologist had just watched the movie gladiator.
What is Mantophasmatodea ? Gladiators is the most prevalent colloquial name for this order, however other names include rock crawlers, heelwalkers, mantophasmids, and mantos. Western South Africa and Namibia (Brandberg Massif) are their current centers of endemism, despite the fact that Eocene fossils and the current relict population of Tanzaniophasma subsolana in Tanzania show a more extensive historic distribution.It was found in Africa in 2001 that the family of predatory, wingless insects known as Mantophasmatidae existed.The group was once thought of as an order in its own right and given the name Mantophasmatodea.For more information on wingless insects kindly visit to
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a grassland biome select one: a. consists of mostly coniferous trees. b. has nutrient-rich soil. c. has a long growing season. d. is warm and dry. e. consists of moss and lichen.
Answers
A grassland biome has nutrient rich soil.
What are grasslands and there importance?The grasslands, which are vast open areas of grass, are preserved by animal grazing, wildfires, and little rainfall. The two different types of grasslands are savannas and temperate grasslands. Savannas are located in areas with a warm climate and a rainy and dry season. Temperate grasslands have richer soils and contain animals like prairie dogs and elephants. Human activity has had a significant impact on the grassland biome. The primary goal of an ecosystem is productivity. Minerals are used by manufacturers to stabilize solar energy and produce sophisticated biological material. It also provides a habitat for species, both flora and wildlife, protects and conserves soil and water resources, and adds to the beauty of the area. Additionally, it gives livestock food.
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imagine a cell that has a membrane composed mostly of lipids with saturated fatty acid tails, and that this membrane also has low cholesterol content. what are the characteristics of this cell membrane?
Answers
The characteristics of this cell membrane is, its fluidity decreases at cold temperatures, saturation, and is slower
What is fluidity?
Cell membrane fluidity (CMF) is a parameter describing freedom of movement of protein and lipid constituents within the cell membrane.
CMF appears to influence several cellular processes including activity of membrane-associated enzymesAt lower temperatures, phospholipids in bilayer do not have as much kinetic energy and they cluster together more closely, increasing intermolecular interactions and decreasing membrane fluidityDue to its low cholesterol content, the cell membrane would lose its fluidity at cold temperatures.learn more about membrane fluidity at
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Why is a donor of AB+ blood group not compatible with an O+ recipient case?.
Answers
It all comes down to antibodies.
Antibodies are specialized proteins that are produced in response to anything that your immune system might need to fight off, such as bacteria and viruses. Consider them the first ‘identification’ step of the immune system, trying to find anything that doesn’t belong.
Despite the similar name, antibodies are not to be confused with antigens. An antigen is any kind of molecule, such as a protein or a carbohydrate, that can be recognized by the immune system—the antibodies target whichever antigens it identifies as being foreign invaders.
It is important though for the antibodies to not identify antigens that do belong. They’re also produced based on the antigens that are not already present on your red blood cells. For example:
A type blood has anti-B antibody in the plasma
B type blood has anti-A antibody in the plasma
AB has neither A nor B antibody in the plasma
O has both A and B antibody in the plasma.
the structure of the genetic material refers to the folding that allows it to be packed into the confined space of a cell. please choose the correct answer from the following choices, and then select the submit answer button. answer choices quaternary primary secondary tertiary
Answers
The folding that enables the genetic material to fit tightly inside a cell is referred to as the tertiary structure of the genetic material.
Which component is in charge of the transmission of genetic information between two cells?A structure called a sex pilus (plural: pili) is used by bacteria to transfer genetic material from one cell to another. Only bacteria with a specific plasmid that encodes the elements required for pilus formation and material transfer can experience this.
The entirety of an organism's DNA (genetic material). Almost all of the cells in a person's body have a complete copy of the genome. All of the data required for a person to develop and grow is contained in their genome.
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There are many different ways to use your kitchen and garden wastes to create "brown gold" (as gardeners call compost), including worm composting, which has become quite popular with people who live in apartments and don’t have a big garden space! Research different home-composting methods and write a newspaper article (you don't have to write the newspaper, I do though) describing different methods to homeowners. Be sure to begin your article with a basic explanation of how microorganisms create compost and why it is good for the garden. Include a paragraph describing which type of composting method you think would work best for your family.
Answers
Answer:
Explanation: plant the wast with the soil for fertilizer
Do humans have elements on the periodic table?.
Answers
It is true that humans are made up of atoms, and atoms are the building blocks of the periodic table, the answer is a bit more complicated than that. Humans are made up of many different elements, but not all of them are found on the periodic table.
The reason for this is that the periodic table only contains elements that are found naturally on Earth. While some of the elements that make up humans are found naturally on Earth, others are not.The periodic table is a list of all the known elements in the universe.
As of right now, there are 118 elements on the periodic table. Of those 118 elements, 94 are naturally occurring, while the other 24 are man-made.We have six of them. Carbon (C), nitrogen (N), oxygen (O), phosphorus (P), sulfur (S), and potassium (K) are all elements that are found in the human body.
These elements make up the majority of our bodies, with carbon being the most abundant. While we may not have all 118 elements in our bodies, the six that we do have are essential to our survival. They make up the building blocks of our DNA, and without them, we would not be here.
Some of the elements that are found in humans, but not on the periodic table, are created artificially in laboratories. These elements are called "synthetic" elements.So, while humans do have elements on the periodic table, not all of them are found naturally on Earth.
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What had Tom brought for Maggie how did he create a sense of mystery in revealing them to her?.
Answers
Tom is able to deliver Maggie's preferred foods and toys. He could pack them away, secure it, and inform her of his surprise after supper. He would then take the box and ask her to guess what's inside.
Tom has given Maggie a new fishing line as a gift. He had to struggle with his classmates every day to get it because he wouldn't split the cost of the toffee and gingerbread while they were saving the money. Tom gets the respect and appreciation he expected for doing this and for making the commitment to take Maggie fishing the following day.
He then suggests that they visit his rabbits. In an effort to stop him, Maggie offers to purchase him several surprise , but eventually she is forced to own up to having let the others to pass away. Tom informs her that he will not be taking her fishing after all and reminds her of similar mistakes in the past.
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bernadette's differential white blood cell count data is below. based on these data, what can you conclude? choose all that apply. (nclex-hesi-teas style)
Answers
The information points to a potential blood cancer in Bernadette. Cancer in white blood cells as well as cells that develop into white blood cells is known as leukemia.
Lymphocytic leukemia, which affects lymphocytes or other immune cells, can be acute or chronic (myeloid leukemia). Cancer and cancer therapy both have the potential to cause a cancer patient to have a low WBC count. The production of neutrophils may decrease if cancer is present in the bone marrow. If cancer is treated using chemotherapy medications, which reduce the bone marrow's creation of healthy WBCs, the WBC count may also decrease. A kind of cancer known as leukemia affects the bone marrow and blood cells. Leukemia does not presently have a cure, much as other cancers. Leukemia patients may go into remission, which is a condition where the cancer is just no longer visible in the body following diagnosis and therapy.
(bernadette's differential white blood cell count data is below. based on these data, what can you conclude? choose all that apply. (nclex-hesi-teas style)
Bernadette has an infection.Bernadette has lymphocytosis.Bernadette has pertussis, or whooping cough.Bernadette has leukocytosis.
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In negative control, what molecule would you expect to find bound to the operator if there is no transcription?.
Answers
In negative control, Repressor molecule is expected to be bound to the operator is there is no transcription.
Repressor molecule is a small protein which binds with the operator gene and prevents it from starting the synthesis of proteins called operon. The repressor molecule controls the amount of enzyme synthesis by reducing its rate of formation. The lac repressor is a protein that represses (inhibits) transcription of the lac operon. In negative control, repressor molecule binds with the DNA molecule and blocks transcription process. A negative control is an experimental control that does not give a response to the test. The system of regulation in lactose and tryptophan operons outlined above is essentially a negative control.
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