Simple squamous epithelium known as mesothelium lines the thoracic, pericardial, and abdominal cavities. The circulatory system's endothelium is a straightforward squamous epithelium.
Special names for the lining of some interior surfaces include endothelium and mesothelium. Endothelium is the term for the basic squamous epithelium that lines the whole circulatory system, including the heart, arteries, veins, capillaries, sinusoids, and lymphatics.
The "corneal endothelium," which is a distinct specialised tissue, is the term used to describe the inner lining of the cornea. A mesodermally produced simple squamous epithelium known as mesothelium lines the major bodily cavities (peritoneal, pleural, and pericardial).
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3. If a species of bird flies fast to escape predators, then over time (many, many generations) the wing muscles of that species will get stronger so that it can fly faster. How does this happen?
A. Birds born with stronger wing muscles survive longer and pass down that trait to their offspring.
B. The more a bird flies, the stronger it gets and passes down that trait to its offspring.
C. The more a bird flies, the more fatigued it gets, and it passes down that trait to its offspring.
D. Birds born with weaker wing muscles survive longer and pass down that trait to their offspring.
Which of these ecosystems has the highest net primary productivity per square meter?A) savanna. B) open ocean. C) boreal forest. D) tropical rain forest
The ecosystem which has the highest net primary productivity per square meter is option D) tropical rain forest.
All the species and the physical setting they engage with make up an ecosystem. Photosynthesis is how energy reaches the system and is absorbed by plant tissue.
Tropical rainforests are ecosystems that develop in areas with a tropical rainforest climate and are sometimes referred to as lowland equatorial evergreen rainforests. The tropical rain forests, which have a dense and evergreen vegetation, are the most productive ecosystems. It has a net primary production of 9000 kcal per square metre per year and is productive all year long.
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iii) suggest how the actual genotype of the albino parent could be determined.
Cross the albino parent with a black individual aaDd/aaDD (homozygous for yellow banding)
If genotype is Aadd, there will be agouti offspringIf genotype is aadd no offspring produced with be agouti.The transmission of features or information from one generation of persons or cells to the next is referred to as inheritance. Inheritance can occur through one of two mechanisms: genetic inheritance or epigenetic inheritance. Part of the molecular underpinning of inheritance is the study of genes, genetic variations, and heredity. It explains why a child resembles his or her parents. The molecular basis of heredity is built on DNA, RNA, and genetic code. They pass down genetic genes from parents to kids.
For single-gene illnesses, there are four primary patterns of inheritance: autosomal dominant, autosomal recessive, X-linked dominant, and X-linked recessive. However, these patterns do not apply to all genetic disorders, and other uncommon kinds of inheritance, such as mitochondrial inheritance, exist.
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which of the following accurately describes mutation? group of answer choices mutations occur randomly. it is likely that multiple individuals in a population will experience the same mutation simultaneously. mutations occur when they are beneficial to members of the population. mutations occur in response to an environmental pressure
A mutation is basically an alteration in the genetic sequence of an organism which happens to occur randomly.
A genetic mutation, or simply, a mutation is a change or an alteration which occurs in an organism's genome. Most of the mutations happen to occur randomly. They may or may not be present in multiple individuals in a particular population. It might also be present in a small part of the population or in a larger chunk of it.
Not all the mutation are beneficial. Some mutation can be lethal while other might have no effect at all. Mutations can occur due to multiple factors and not just environmental factors. These factors can be both internal factors as well as some external factors.
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An oxygen atom has eight protons. From this information, can you determine numbers of neutrons and electrons in an oxygen atom? Explain.
The information provided indicates that oxygenation contains 8 protons, 8 neutrons, and 8 electrons.
How are the amount of electrons determined?There are precisely quite so many electron as protons in a neutral atom. The total number of neutrons and protons in the atom's nucleus is identical to the mass number (M) of the atom. The differential between the atomic number and also the mass value of the atom (M) is equal to the amount of neutrons (Z).
The atomic weight may be used to compute the different neutron counts. Since the weight of the neutrons and protons are essentially the same (approximately one), and oxygen has an atomic weight of 16, you should subtract this value to get the neutron number.
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within which structure in the human body does specialization of parts of developing baby take place ?
Answer:
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while viewing a sample under a microscope you find something interesting within your field of view. how would you best indicate your region of interest to a friend when viewing your sample?
While viewing a sample under a microscope you find something interesting within your field of view, you best indicate your region of interest to a friend when viewing your sample by dividing the field of view into quadrants.
If you want to point out an intriguing area, the simplest thing to do is to divide the area under consideration into quadrants and then number them in the direction of the clock. This will help drive the person under consideration to the appropriate quadrant.
The section of a picture that you intend to modify in some way by applying a filter to it is referred to as a region of interest. A region of interest can be represented as a binary mask picture. In the mask image, pixels that are part of the ROI have the value 1 assigned to them, whereas pixels that are not part of the ROI have the value 0.
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Which of the following words uses the same
meaning of the prefix "co-" as it means in the
word "codominance?"
- Contradict
- Cooperate
-Coca Cola
-Counter
The answer you're looking for is "Cooperate", since it means two or more people working together, and "Codominance" means two or more different versions of the same gene are present in one offspring (in biology)! I hope this helps :)
Answer:
Cooperate
Explanation:
The word "codominance" means to have two dominant genes. The prefix co in this scenario means two, just like in the word cooperate, which means two people working together to meet the same goal.
Understand prefixA prefix is a syllable that is added to the beginning of a word. This helps define and change the meaning. Example: Indefinite. The base word is 'definite' and means to be without doubt. But when you add the prefix 'in', it translates to uncertain or vague. This is because the prefix 'in' means 'not'.
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differences among plant species in flower morphology explain the range of insect species that act as
Differences among plant species in flower morphology explain the range of insect species that act as pollinators.
What are pollinators?
Pollen is transferred by pollinators from the male stamen of a flower to the female stigma of that same bloom.
Bees, wasps, birds, butterflies, moths, flies, and even some tiny mammals, such as bats, are among the pollinators.
Bees and other insects rely on nectar and pollen for feeding, and plants rely on insects to spread pollen to other members of the same species in order to promote cross-pollination.
Mutualism is the term used to describe the relationship in which both creatures profit.
Thus, the variety of insect species that serve as pollinators is explained by variations in flower shape between plant types.
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which of the following is considered a community? view available hint(s)for part a which of the following is considered a community? all of the living and nonliving things on earth several interacting species living in the same area an ecosystem a single population whose individuals are similar enough to each other to be able to breed successfully
Several interacting species living in the same area is considered community.
A community is a collection of animals that coexist and live in one place at one time. Community ecologists examine the diversity of species in a certain area and try to understand why it varies through time. Additionally, they investigate the reasons for the variation in species counts among communities and places.
Community ecologists frequently focus their research on a small set of species. A community ecologist who studies stream fishes, for instance, would look into the fishes found in minor streams. Perhaps a different community ecologist will look at shark parasites. Assemblies, species with a commonality in habitat or taxonomy, or taxonomic groups are what are referred to as these more restricted communities.
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congenital analgesia is a rare recessive trait. what is the likelihood that the first two offspring of a cross between two unaffected parents heterozygous for the trait will have congenital analgesia and that the third offspring will be unaffected?
The probability that the first two offspring of the cross will have congenital analgesia is 6.25%.
In an autosomal recessive trait, two recessive alleles are required for the trait to manifest, while one recessive allele indicates heterozygosity.
In this case, let us assume that congenital analgesia is represented by the p allele; the heterozygous individual will be Pp.
A cross between heterozygous unaffected parents, namely:
Pp x Pp
Get a chance at offspring.
PP, Pp, Pp, PP
The ratio of offspring unaffected by ¾ and affected by ¼.
The probability that the first two children have congenital analgesia = the probability that the first child has congenital analgesia, and the second child has congenital analgesia, then
= 1/4 x 1/4
= 1/16
= 0.0625
= 6.25%
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8. In pea plants, purple (P) flower color is dominant to
white (p) flowers, and yellow (Y) seeds are dominant to
green (y) seeds. Flower color and seed color are inherited
independently. A cross is done between two plants of
unknown genotypes and the results of the F, generation
are analyzed.
Purple/yellow
0
Purple/green
0
White/yellow
321
White/green
101
Sh
You notice right away that all offspring are white. You
then notice that the yellow: green ratio is approximately
3:1. Knowing this, determine the parental genotypes.
As the yellow: green ratio is approximately 3:1, the genotype of the parents will be PYPy and PYpy.
What is genotype?The genotype of an individual is their own DNA pattern. More specifically, the two alleles a person acquired for a particular gene are referred to by this phrase.
The clinical presentation of a patient is the observable expression of this genotype, or phenotype.
You immediately see that all of the progeny are white. The yellow to green ratio is then shown to be roughly 3:1. Given this, the parents' genotypes will be PYPy and PYpy.
Thus, this is the genotype of the parents.
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which is the most accurate statement with regard to the cdc's category abc agents list?
The CDC's Category ABC Agents list is the most comprehensive and over- to- date table of contagious agents and conditions that are of implicit concern in the United States.
The list is divided into three orders A agents are those that pose the topmost implicit trouble to public health and safety; B agents are those that pose a moderate implicit trouble; and C agents are those that pose the least implicit trouble. The list is streamlined regularly to include new contagious agents or conditions that may pose a trouble.
It's important to note that the list doesn't include every contagious agent and complaint; rather, it focuses on those that are most likely to beget serious illness or death. The list is collected grounded on the stylish available scientific substantiation and is used by public health professionals to prioritize their response to implicit outbreaks.
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A woman presents with edemas. In her urine there is a large amount of protein excreted. What nephron segment is functionally disturbed in this case?
A. Descending limb of loop of Henle
B. Proximal convoluted tubule
C. Distal convoluted tubule
D. Renal corpuscle
E. Ascending limb of loop of Henle
In a woman presenting with edema, the protein is an excretion product of the kidney and can be seen in the urine. The descending limb of the loop of Henle is functionally disturbed in this case. The A. descending limb of the loop of Henle is functionally disturbed in this case.
The proximal convoluted tubule is functional as well as the distal convoluted tubule but not in this case.
Renal corpuscles cannot appear there due to hyperplasia but renin secretion and renin secretion do not contribute to increased proteinuria of such magnitude. In a woman with edemas, there is a large amount of protein excreted in the urine.
This indicates that protein has filtered from the blood into the urine and is being reabsorbed into the tubular network. The proximal convoluted tubule is functionally disturbed because it does not filter large solutes efficiently. This can be demonstrated by having her drink more fluids to hydrate her and then, if possible, measure the amount of electrolytes present in the urine.
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3. amino acid residues in proteins are each specified by three contiguous bases. what is the contour length of a segment of b-dna that encodes a 50-kd protein?
The shape length of a fragment of B-DNA is 4616 Åor 0.46 µm.
The code: codons. In a DNA succession, the code for every one of the 20 normally happening amino acids comprises a grouping of three nucleotide bases, which we'll simply allude to with three "letters," like ATG, or CCC. Review that A = adenine, C = cytosine, T = thymine (or U = uracil in RNA), and G = guanine.
Be that as it may, a trio code produces 64 (43 = 64) potential blends or codons. In this manner, a trio code presents the issue of there being multiple times the number of codons than amino acids.
A succession of three back-to-back nucleotides in a DNA or RNA particle that codes for a particular amino corrosive. Certain codons signal the beginning or end of interpretation. These are called start or stop (or end) codons.
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CER. Scenario: It is known that the process shown occurs in all cells, but not all cells have the same function. Prompt: Write a scientific explanation of how the same process in all cells allows for different traits to be expressed in different cells. NEED ASAP PLEASE !
The same process called transcription in all cells allows for different traits to be expressed in different cells because it is not complete but it is specifically determined to specific DNA regions called genes.
What does the expression 'transcription is not complete for all DNA in all cells' mean?The expression 'transcription is not complete for all DNA in all cells' indicates that different cell expresses different genes, thereby leading to cell specialization.
Therefore, with this data, we can see that 'transcription is not complete for all DNA in all cells' is deeply associated with cell differentiation.
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provide an example of founder effect
Answer:
For example, If a bird population migrates to an island that has cold weather they will evolve more fur.
Answer:
In humans, founder effects can arise from cultural isolation, and inevitably, endogamy. For example, the Amish populations in the United States exhibit founder effects because they have grown from very few founders, have not recruited newcomers, and tend to marry within the community.
Light can easily travel through empty space from the Sun to Earth. Sound cannot travel through empty space. Using your knowledge of transverse and longitudinal waves, why do light and sound behave in these ways? Respond in complete sentences.
include_ Light explanation in relationship with waves (2 points)
Sound explanation in relationship with waves (2 points)
Written in complete sentences (1 point)
The path of light is wave-like. Although it does not require any matter of material to transmit its energy, unlike water waves and sound waves, it does. This implies that light can move through a vacuum,
In Example, how does energy function?There are various forms of energy. These consist of, among others, energy from nuclear or atom energy, light, heat, muscular motion, gravity, electrical, sound, chemistry, and so on. One form may be altered or changed into another.
Why is energy important to a person?The energy of an individual is a result of their past, mindset, predominate thoughts, and worldview. When that energy manifests, it may do so overtly or subconsciously in other cases.
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which of the following is an example of directional selection? question 34 options: a) a mouse population that is originally white in color becoming darker in color after several generations b) a flower population that originally ranges from white to red becoming mostly pink over several generations c) a moth population that is originally grey gradually dividing into discrete white and black populations over several generations
An example of directional selection A: a mouse population that is white in color originally then becoming darker in color after several generations.
Directional selection is a type of natural selection in which a certain phenotype (characteristic or trait) becomes more common in a population over time due to environmental factors that favor that trait.
This can happen, for example, if a certain coloration provides better camouflage for prey animals, or if a larger body size provides better resistance to cold temperatures. Directional selection can result in the evolution of a new species or subspecies if the favored phenotype becomes widespread enough and is no longer able to interbreed with other populations.
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A portion of sequences for two types of hemoglobin are shown in the diagram.
The top sequence for wild-type hemoglobin is C-C-T, G-A-G, G-A-G. The bottom sequence for sickle-cell hemoglobin is C-C-T, G-T-G, G-A-G.
Sickle-cell anemia is caused by a mutation of one nucleotide in a gene. Using the diagram, which type of mutation is responsible for sickle-cell anemia?
A.
a frameshift mutation
B.
an insertion mutation
C.
an inversion mutation
D.
a substitution mutation
Answer:
D.
Explanation:
Sickle-cell anemia is caused by a point mutation, specifically a single nucleotide substitution, which is the replacement of one nucleotide in the DNA sequence with another. In the diagram provided, the wild-type hemoglobin sequence is shown as C-C-T, G-A-G, G-A-G and the sickle-cell hemoglobin sequence is shown as C-C-T, G-T-G, G-A-G. The difference between these two sequences is that the wild-type has an adenine (A) at the second position of the second codon (GAG) while the sickle-cell hemoglobin has a thymine (T) at the same position. This single nucleotide change in the DNA sequence results in a change in the amino acid sequence of the hemoglobin protein, and this is what causes the abnormal sickle-shaped red blood cells.
Which of the following effects would be brought about by any enzyme catalyzing the simple reaction:
S K1----> P where Keq =[P]/[S
k2<-----
A) Decreased K’eq
B) Increase k1
C) Increase ∆G‡
D) More negative ∆G’°
E) Increased k2
F) Decreased ∆G‡
G) Increased Keq
Why? Justify your answer to every letter using your knowledge of enzyme action and activity
Answer:
A) Decreased K’eq - This is not correct. Enzymes lower the activation energy required for a reaction to occur, which leads to an increase in the rate of the reaction (k1) and a decrease in the equilibrium constant (Keq)
B) Increase k1 - This is correct. Enzymes lower the activation energy required for a reaction to occur, leading to an increase in the rate of the reaction (k1).
C) Increase ∆G‡ - This is not correct. Enzymes lower the activation energy required for a reaction to occur, which leads to a decrease in the standard free energy change (∆G‡)
D) More negative ∆G’° - This is not correct. Enzymes lower the activation energy required for a reaction to occur, which leads to a decrease in the standard free energy change (∆G‡) and as a result, ∆G'° will become less negative.
E) Increased k2 - This is not correct. Enzymes do not affect the rate constant for the reverse reaction (k2)
F) Decreased ∆G‡ - This is correct. Enzymes lower the activation energy required for a reaction to occur, which leads to a decrease in the standard free energy change (∆G‡)
G) Increased Keq - This is not correct. Enzymes lower the activation energy required for a reaction to occur, which leads to a decrease in the equilibrium constant (Keq)
In summary, enzymes catalyze reactions by lowering the activation energy required for a reaction to occur, leading to an increase in the rate of the reaction (k1) and a decrease in the standard free energy change (∆G‡) and equilibrium constant (Keq).
The enzyme that is catalysing the straightforward reaction has a lowered activation energy, increased k1, and increased k2.
Enzymes don't alter a biological reaction's equilibrium state, to put it briefly. G0 and Keq do not change. Instead, the enzyme speeds up the reaction by lowering the activation energy required for it to happen.
A catalyst accelerates the forward and backward reactions by the same precise amount. When the rates of the forward and back reactions are identical, dynamic equilibrium is reached. There is no requirement for a change in the position of equilibrium if a catalyst speeds up both reactions equally.
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what are the major products of the reactions catalyzed by the three eukaryotic rna polymerases? match the polymerase on the right with the product on the left.
Results of RNAP knit Courier RNA (mRNA) — layout for the amalgamation of proteins by ribosomes. Non-coding RNA or "RNA qualities" — a vast class of qualities that encode RNA that isn't converted into protein.
DNA polymerases catalyze proficient and high-constancy DNA amalgamation. While this response favors nucleotide consolidation, polymerases likewise catalyze an opposite response, pyrophosphorolysis, eliminating the DNA preliminary end and producing deoxynucleoside triphosphates.
All eukaryotes have three distinct RNA polymerases (RNAPs) which translate various sorts of qualities. RNA polymerase I translate rRNA qualities, RNA polymerase II deciphers mRNA, miRNA, snRNA, and snoRNA qualities, and RNA polymerase III interprets tRNA and 5S rRNA qualities.
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molluscs that have an elongated shell, open at the top and tapered like an elephant tusk, are called . multiple choice question.
The mollusks of the class Scaphopoda are alluded to as the tusk shells in light of the fact that their shells are molded like elephant tusks. The leftover classes have fewer species.
Chitons have lengthened, reciprocally balanced, dorsoventrally straightened bodies with an oval framework. The shell covers the vast majority of the dorsal surface and comprises eight covering calcareous plates. The expansive, oval, level foot is utilized for connecting to and crawling gradually over hard foundations.
Molluscs are a clade of organic entities that all have delicate bodies which ordinarily have a "head" and a "foot" district. Frequently their bodies are covered by a hard exoskeleton, as in the shells of snails and shellfish or the plates of chitons.
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4. When discussing comparative morphology, what do scientists compare between modern organisms and their extinct relatives?
timeline
DNA
anatomy
environment
if a viral host cell has a mutation that interferes with the addition of carbohydrates to proteins during processing in the golgi apparatus, which of the following processes is most likely to occur? if a viral host cell has a mutation that interferes with the addition of carbohydrates to proteins during processing in the golgi apparatus, which of the following processes is most likely to occur? the virus would be unable to reproduce within the host cell. the virus-encoded protease would be unable to cleave large viral proteins into smaller, functional polypeptides. viruses released by that cell are novel and would result in infections with higher mortality rates. viruses released by that cell would have a decreased ability to infect cells than the virus that originally infected the cell.
Option 2 is Correct. If a viral host cell develops a mutation that prevents the Golgi system from properly combining proteins and carbohydrates.
If the subsequent events take place, the viral envelope proteins might not reach the host plasma membrane because they do not include glycoproteins. Here are the following processes is most likely to happen if a viral host cell develops a mutation that prevents the Golgi apparatus from adding carbohydrates to proteins.
There would be no glycoproteins attached to the viral envelope proteins, and it is possible that they wouldn't reach the host plasma membrane. Viral proteins bind to the host cell surface during the initial stage of attachment, called attachment. There, they engage in interaction with receptors unique to their host cells and themselves.
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Correct Question:
If a viral host cell has a mutation that interferes with the addition of carbohydrates to proteins during processing in the golgi apparatus, which of the following processes is most likely to occur?
1. the virus would be unable to reproduce within the host cell.
2. the virus-encoded protease would be unable to cleave large viral proteins into smaller, functional polypeptides.
3. viruses released by that cell are novel and would result in infections with higher mortality rates.
4. viruses released by that cell would have a decreased ability to infect cells than the virus that originally infected the cell.
how to make a fake bone for anatomy flvs
To make a fake bone for anatomy study, you can use materials like resin, plastic, or papier-mâché to mold and paint a replica of the bone.
To make a fake bone for anatomy study, you have a few options for materials. One popular option is to use a moldable material, such as resin or plastic, to create the shape of the bone. You can also use papier-mâché to form the shape and then paint it to resemble the bone. Another option is to make a replica using foam or another lightweight material and then paint it. You can also anatomy purchase pre-made fake bones or models, but making your own allows you to customize it to your specific needs. Whichever method you choose, make sure to anatomy research the bone you are trying to replicate to ensure that your fake bone is accurate in terms of size, shape, and detail.
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If a cell starts out in G2 phase with 12 chromosomes, how many chromosomes would you expect in each of the daughter cells if one of the chromosomes failed to separate in anaphase? Remember that if two chromatids are still attached at the centromere (as they would be in this case), we count them as one chromosome. O Each daughter cell will have 13 chromosomes. O Each daughter cell will have 11 chromosomes. O One daughter cell will have 12 chromosomes, and the other will have 13. O Each daughter cell will have 12 chromosomes. O One daughter cell will have 11 chromosomes, and the other will have 12.
If a cell starts out in G2 phase with 12 chromosomes One daughter cell will have around 11 chromosomes, and the all other will have 12 so the correct option is C.
The chromosomes are structures within a cell that contain inheritable material. Chromosomes are composed of DNA, which contain all the instructions demanded to make and maintain an organism. In humans, chromosomes come in dyads, with one chromosome from each brace inherited from each parent.
Each chromosome has hundreds to thousands of genes, which give instructions for the product of proteins and other motes that are necessary for the development and function of an organism.
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A ample of human DNA wa run electrophoretic ally on an agaroe gel. Predict how the reulting gel will look
Depending on the size of the DNA fragments in the sample, the gel produced after an electrophoretic run of a human DNA sample on an agarose gel may likely show a number of distinct DNA bands separated by variable distances.
DNA fragments are separated during electrophoresis depending on their size and charge, with smaller fragments moving through the gel more quickly and travelling further from the origin than bigger pieces. The DNA fragments travel towards the positive electrode as the electric field is applied, separating according to their sizes. The gel electrophoresis device has wells in which the DNA sample is loaded, and the agarose gel matrix acts as a medium for the DNA to travel across.
After staining with a DNA-specific dye, such as ethidium bromide, the resultant gel will have the DNA fragments split along its length and be visible as discrete bands. By comparing the movement of the fragments on the gel to a recognised DNA size marker, the size of the DNA fragments may subsequently be inferred.
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if a population of oak trees has acorns with a circumference most commonly occurring at 2cm, what would you expect the most common circumference to be after 15 generations of directional selection?
Since it is a directional stabilization, the extreme features will be favored and so after 15 generations, the most commonly occurring acorns will have circumference either lesser or more than 2cm.
Directional stabilization occurs when individuals which have traits present on one side of the mean in the population survive better or we can say reproduce more than those on the other side.
The population of the oak trees has acorns which have a circumference which is most commonly at 2 cm. This means that 2 cm is the intermediate value. Since it is a directional stabilization, the extreme feature present on either side of the distribution will be favored and hence the acorns with circumference of either less or more than 2 cm will be preferred.
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Why are the differences in the shape of a plant cell and an animal cell necessary for their functions?
Answer:
Explanation:
plants it has definite shape while animals have concrete shape