A polynucleotide cannot be started during the DNA synthesis process by the enzymes. Only existing chains that are base-paired with the template strand of RNA, not DNA, can be extended with DNA nucleotides. Primase produces this RNA, which is known as a primer.
A new DNA strand's synthesis is started by what?The process of creating a new DNA molecule officially starts with primer synthesis. The RNA polymerase enzyme primase creates primers, which are brief nucleotide stretches (about 10 to 12 bases long).
Replication origins are the places where the DNA helix opens for the first time. Origins are defined by DNA sequences that are several hundred nucleotide pairs long in simple cells like those of bacteria or yeast.
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In which parent could chromosomal rearrangement have made an x chromosome with 2 fur color alleles? mother father either mother or father.
In mother chromosomal rearrangement have made an x chromosome with 2 fur color alleles.
What are chromosomes?
A chromosome is a lengthy DNA molecule that contains all or a portion of the genetic code for an organism. The histones, which are the most significant of these proteins in eukaryotic cells, coat the very long, thin DNA fibers in most chromosomes. These proteins condense and bind to the DNA molecule in order to preserve its integrity, with the help of chaperone proteins. The intricate three-dimensional structure of these chromosomes is important for controlling transcription.
Hence, in mother chromosomal rearrangement have made an x chromosome with 2 fur color alleles.
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Answer:
its mother
Explanation:
its A np like and thanks
using your knowledge of the stucture of triglycerides, what are the products of the breakdown of triglycerides in adipose tissue?
Lipolysis Triglycerides must first undergo hydrolysis to separate into their two main parts, fatty acids and glycerol, in order to be converted into energy. In the cytoplasm, a process known as lipolysis takes place.
Fatty acids, monoglycerides (glycerol backbone with one fatty acid still attached), and some free glycerol are all products of the breakdown of triglycerides. The enzymatic digestion of cholesterol and fat-soluble vitamins is not necessary.
The metabolic process by which lipid triglycerides are digested into a glycerol and three fatty acids is known as lipolysis,It often takes place in fat adipocytes and is used to release energy that has been saved during fasting or exercise.
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What is the general rules for serving food and beverage?.
If it's not a buffet, bring food to the guest table. When dining in a formal setting, present the meal to the visitor from their left. In the event of casual dining, prepare the food plates from the kitchen and set them on the visitor table. Ask the visitors if they require assistance with food service.
Your thumb should never be on the plates. When approaching a guest table, always carry your silverware, china, linen, and glassware on a clean tray. Always bring dirty dishes with you when returning to the kitchen. On the trays, the dishes shouldn't be piled too high. To serve from the right side of the guest, remove the food cover with your right hand and place it in front of them. Always serve young people and women first, followed by senior men or guests, and the host last (move clockwise around the table for serving). Always serve the food in the proper order.
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homologous chromosomes .group of answer choicescarry the same versions of all genescarry the different alleles (i.e. versions, or, flavors) of a geneare a set of chromosomes that the cell received from one parentinclude only the autosomes
A homologous pair of chromosomes has identical genes on each of them in the same order, although there may be differences between them that give rise to different alleles.
While some of these allele's mutations may have functional ramifications, others won't. A homologous chromosome is a pair of chromosomes that is connected by the centromere and has the same length and gene location on both the maternal and paternal chromatids. A pair of identical chromosomes, one from each parent, are those that share the same length, gene position, and centromere location. The two sister chromatids that make up a homologous chromosome are joined by cohesions to form a tetrad.
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what does chloride do in the body? group of answer choices stabilizes protein shape participates in blood clotting helps maintain gastric acidity protects bone structures against degeneration supports immune system functioning
Maintain gastric acidity is what chloride do in the body
Chloride is also necessary to maintain all of the proper balance of the body fluids. It is an essential component of digestive juice (gastric juice). Low chloride levels can be a sign of: heart defect. lung disease. Addison's disease, a condition in which your body's adrenal glands do not produce enough of certain types of hormones. Excess chloride in the body is very dangerous because it causes the blood to be more acidic than normal. If not treated immediately, it can lead to:Kidney stone. If the kidneys are damaged, their ability to recover is reduced. Chloride helps maintain the body's water balance. It also helps produce digestive enzymes that help the body metabolize food. Changes in chloride levels can affect these functions.
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What are the 4 functions of the female reproductive system?.
4 functions of the female reproductive system are One of which is the release of eggs that might be fertilized by sperm ,Making female sex hormones like estrogen and progesterone ,Supplying the conditions necessary for a fertilized egg to grow during pregnancy, Assisting with labor and delivery.
Female Reproductive System:
The female reproductive system's organs create and maintain the female sex cells (also known as ova or egg cells), move them to a location where they can be fertilized by sperm, create a favorable environment for the growing fetus, transport it to the outside at the conclusion of its development, and create female sex hormones.
The ovaries, Fallopian tubes, uterus, vagina, accessory glands, and external genital organs are all parts of the female reproductive system.
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T/F an unkown liquid contains 38.7 g c and 51.6 grams of o by mass. the remainder of the cmopund is h, what is the empirical formula of the compound
Emperical formula of the compound is
[tex]ch_{3}o[/tex]
Molecular formula= n × emperial formula
assume a mass of compund= 100g
and from this mass we have to calculate the molar quantity of each element.
Quantity of hydrogen= 100 - 38.7 - 51.6 = 9.62g
Moles of Carbon= 38.7/12.011 = 3.22
Moles of Hydrogen= 9.7/1.007 = 9.62
Moles of Oxygen= 51.6/15.999 = 3.22
And now we divide through by the smallest atomic quantity to get an empirical formula.
3.22 : 9.62 : 3.22
1 : 3 :1
Emperial formula will be
[tex] ch_{3}o[/tex]
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Further research proves that these _______ mutations in both ilp alleles are the reason why lp is always active and, consequently, induces the leukemic cells to constantly undergo cell division.
Further research demonstrates that these "Loss of Function" mutations in both ILP alleles are the reason why LP is always active and, as a result, causes leukemic cells to constantly divide.
What is a mutation?A mutation is a change in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes can be constructed from either DNA or RNA.
Harmful mutations can lead to genetic diseases or cancer. A genetic condition is a disease caused by a mutation in one or more genes. A human example is a cystic fibrosis. A single gene mutation causes the body to produce thick, sticky mucus, which clogs the lungs and blocks digestive ducts.
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A diploid animal is dihybrid at the Head shape (H) and Tail length (T) loci. Which of the following gamete genotypes can it produce? ht HhTt HHTT HH
If a diploid animal is a dihybrid at the Head shape (H) and Tail length (T) loci, then the gamete genotypes that can it produce include ht HT, Ht and hT.
What are gamete combinations in a di-hybrid organism?Gamete combinations in a di-hybrid organism refer to the segregation of both gene variants for an organism that is heterozygous for two different loci.
In the case that both loci are not linked, gamete combinations in a di-hybrid organism will result in four different types of combinations, which include the four alleles two for each locus.
Therefore, with this data, we can see that gamete combinations in a di-hybrid organism can be four because segregation is able to generate all possible combinations in the case that the genes for the organism are not linked and therefore they segregate in different chromosomes.
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Where is nitrogen absorbed by plants?.
The N2 must be changed through a procedure called nitrogen fixation in order for plants to use it. Fixation transforms atmospheric nitrogen into forms that plants can take up through their root systems.
In the form of nitrate, nitrite, and urea, plants take up nitrogen from the soil. The most common form of available nitrogen that is absorbed in aerobic soils where nitrification can take place is typically nitrate. Plants' root hairs can take up nitrate or nitrite from the soil. The nitrogen cycle requires nitrifying bacteria to convert nitrogen from its gaseous state so that it can enter food chains and be utilized as a nutrient by plants and animals. Through ammonia transporters, the plant takes in ammonium ions. Several nitrate transporters that use a proton gradient to power the transport take up nitrate. The xylem, which carries nitrate, carries nitrogen from the root to the shoot.
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How many co2 is needed to produce 2 glucose molecules?.
How many larynx do we have in our body?.
The larynx consists of 3 massive unpaired cartilages (cricoid, thyroid, and epiglottis) and 3 paired smaller cartilages (arytenoid, corniculate, and cuneiform), making a total of nine-person cartilages.
The larynx is a cartilaginous section of the respiratory tract placed inside the anterior element of the neck. The number one function of the larynx in human beings and different vertebrates is to protect the lower breathing tract from aspirating meals into the trachea whilst respiration.
The larynx, normally referred to as the voice box or glottis, is the passageway for air between the pharynx above and the trachea below. It extends from the fourth to the 6th vertebral degree. The larynx is regularly divided into 3 sections: sublarynx, larynx, and supralarynx.
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two students decided to repeat the hershey and chase experiment, with modifications. like hershey and chase they used radioactive sulfur but they substituted radioactive nitrogen for radioactive phosphate. they reasoned that each nucleotide has only one phosphate and two to five nitrogen atoms. thus, labeling the nitrogen atoms would provide a stronger signal than labeling the phosphates. which of the following is the biggest shortcoming in their experimental design?
The biggest shortcoming in their experimental design is that nitrogen is present in both proteins and DNA.
The goal of the Hershey and Chase experiments was to establish if the hereditary material is protein or DNA. They employed bacteriophages that contained radioactive phosphorous and sulfur. They discovered that the progenies generated after bacteria were infected, exclusively contained radioactive phosphorous. They chose radioactive phosphorus and sulfur as proteins don't have phosphorus, and DNA doesn't have sulfur.
The experiment that is being proposed has a number of flaws, but the most significant one is that nitrogen is present in both proteins and DNA. As a result, if radioactivity is found in progeny phages, we will not be able to distinguish whether it originated from DNA or protein.
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Which of the following is not a type of medulla found in a human hair?
a. fragmentation
b. continuous
c. stacked
d. interrupted
e. absent
Stacked is not a type of medulla found in a human hair,
Correct option is: (c)
What is medulla?The medulla is the lowest section of the brain and brain stem, and it is also familiar as the medulla oblongata. The medulla oblongata combines with the spinal cord at the aperture (foramen magnum) at the base of medulla oblongata combines with the spinal cord at the aperture (foramen magnum) at the base of the skull.
It assists in the regulation of your breathing, heart rhythms, blood pressure, and swallowing.
The medulla houses the cardiac, respiratory, vomiting, and vasomotor centers, and hence controls autonomic activities like breathing, heart rate, and blood pressure, as well as the sleep-wake cycle.
So, stacked is not a type of medulla found in a human hair.
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some proteins, such as enzymes and transport proteins, are soluble in water. others, like the fibrous proteins, are not soluble in water.
In contrast to membrane or fibrous proteins, globular proteins are slightly water soluble and can form colloids in water. the composition and order of amino acids.
Are fibrous proteins water soluble?In the anatomy and physiology of vertebrates, fibrous proteins, which are typically static molecules, play crucial structural roles by offering exterior defense, support, shape, and form. They are primarily made of a single, repeated structure that is formed into cables or threads, and they are insoluble in water.
What kinds of proteins are water-soluble?A protein's three-dimensional (3D) structure determines how soluble it is in water. Typically, fibrous proteins are insoluble whereas globular proteins are. The protein's 3D structure is altered by denaturation, making it no longer be globular.
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Which photoreceptor cells are functioning as you walk to the bathroom at night when no lights are on?.
Answer: There are two types of photoreceptors involved in sight: rods and cones.
Explanation: I hope this helps!!!
Consider the fate of pyruvate labeled with 14C in each of the following positions:carbon 1 (carboxyl), carbon 2 (carbonyl), and carbon 3 (methyl). Predict the fate of each labeled carbon during one turn of the Citric Acid Cycle.
The carboxyl carbon will be released as carbon dioxide, and Carbon 2 (carbonyl) and carbon 3 (methyl) will form succinyl CoA.
Citric acid cycle stepsReaction 1: Pyruvate, which has carbon 14 on the carbonyl, methyl, and acetate carbons, reacts with coenzyme A (CoA.SH) in the presence of NAD+ to give acetyl coenzyme A and donates two electrons to NAD+, which becomes reduced NADH. The acetate containing "converts to carbon dioxide in this process:Reaction 2: Oxaloacetic acid reacts with the acetyl coenzyme labeled 14 methyl carbon atom and the carbonyl group in the presence of water to form citric acid, and the coenzyme is removed from the system. The citric acid product contains two -C atoms.Reaction 3: In the dehydration reaction, citric acid is converted to cis-aconic acid.Reaction 4: When water is added, cis-aconic acid becomes isocitric acid.Reaction 5: In the presence of a reducing agent such as isocitric acid, the NADP containing the hydroxyl group is converted to the acid containing -keto analog, oxalomeric acid succinic.Reaction 6: At this stage of the citric acid cycle, oxalomeric succinic acid is converted to 2-oxoglutaric acid through a decarboxylation process.Reaction 7: In the presence of acetyl coenzyme A and a reducing agent NAD+, 2-oxoglutaric acid is converted to succinyl-CoA.Reaction 8: Adding ADP and inorganic phosphate, succinyl-SCoA produces succinyl acid and ADP is converted to ATP.Reaction 9: Fumaric acid to succinic acid.Reaction 10: The conversion of fumaric acid to malic acid is a normal process in the presence of water, which is also part of the citric acid cycle.Reaction 11: Formation of oxaloacetic acid in the presence of a reducing agent NAD. It can be shown that the 14-carbon isotope of the carboxylic acid group remains in oxaloacetic acid, which is the starting material of the second cycle.Learn more about the Citric Acid Cycle at https://brainly.com/question/14900762
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in the vertebrate kidney almost everything is filtered out of the blood plasma and then useful solutes and water are reabsorbed. why? multiple choice question. this process has evolved because it saves the vertebrates a great amount of energy. this process evolved because most of the molecules in the blood plasma are waste molecules and not much has to be reabsorbed. this provides greater flexibility and opportunities to fine-tune the final urine content.
Since the kidneys filter blood and regulate the ratio of salt to water in physiological fluids, they are essential for osmoregulation and excretion in vertebrates.
What function does blood plasma serve?Plasma, the liquid component of your blood, accounts for 55% of its overall volume. In order to help your body recover from wounds, transport nutrients, remove waste, and prevent infection, plasma must flow throughout the circulatory system.
Is donating blood plasma advantageous to you?In addition to raising dietary knowledge, plasma donation has other advantages. It might also improve your physical health. By boosting good cholesterol and reducing bad cholesterol, regular plasma donation may assist people's health, especially women's health.
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If you stopped gel electrophoresis halfway during the running time, what would you expect?.
If we stopped gel electrophoresis halfway through the running time, not all the fragments have separated from each other in the gel yet.
Gel electrophoresis is a technique used in laboratories to molecularly separate mixtures of DNA, RNA, or proteins. The molecules that need to be separated in gel electrophoresis are forced through a gel that has tiny pores by an electrical field.
The negatively charged nature of DNA causes it to move toward the positively charged electrode when an electric current is applied to the gel. Because shorter DNA strands pass through the gel more quickly than longer strands, the fragments are arranged according to size.
Gel electrophoresis is a technique for the size-separated separation of biological molecules. By putting these molecules in a gel with tiny pores and applying an electric field across the gel, it is possible to separate the molecules.
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the arabidopsis will be scored based on presence or absence of two traits. a plant that is [a] lacks structures called [b] on its leaves. plants positive for [c] will glow green under a special light.
A plant that lacks trichomes on its leaves is said to be glabrous. Plants that have the green fluorescent protein, or GFP, will glow green when exposed to a particular light.
What functions do green fluorescent proteins serve?GFP is a tool used by biologists to examine the development of cells in embryos and fetuses. Scientists can observe the presence of a certain protein in an organic structure thanks to GFP's ability to bind to and designate another protein with fluorescence.
What is a gene for green fluorescent protein?Aequorea victoria, a jellyfish, produces the green fluorescent protein (GFP), a protein that emits bioluminescence in the visible green region of the spectrum. The GFP gene has been cloned and is employed as a marker in molecular biology.
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which microscope shows cells against a bright background and the intracellular structures of unstained cells based on their varying densities? dark-field fluorescence bright-field electron phase-contrast
A bright background and the intracellular structures of unstained cells are visible in phase-contrast microscopy images of cells.
What purpose does phase contrast serve in microscopy?When using light microscopy, the phase contrast technique is used to improve the contrast in pictures of transparent and colorless specimens. It allows for the visualization of cells and cell components that a regular light microscope would make difficult to see.
Without having to stain the specimen, phase-contrast microscopy is a technique used to gain contrast in a translucent specimen. The ability to use phase-contrast microscopy with high-resolution objectives is a significant benefit, but doing so necessitates a specialized condenser and more expensive objectives.
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a benign neoplasm of the hepatic flexure is coded with code
The code for the malignant neoplasm is C19 when the results of the biopsy determined a malignant neoplasm of colon and rectum.
What is biopsy and what is the code for the malignant neoplasm here?Biopsy is a medical test done to check if the tissue or organ's cell is getting cancerous and to consider the tumors malignant and in biopsy test a sample of tissue is cut and taken to be under consideration for the further check up of the cut tissue.
Here the question is asked of the patient admitted for the biopsy of rectal tissue and the results came malignant that is cancerous and the code of the neoplasm.
Therefore, The code for the malignant neoplasm is C19 when the results of the biopsy determined a malignant neoplasm of colon and rectum.
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study the image below then click on all of the true statements these homologous chromomse shae different alleles
The image shows homologous chromosomes with different alleles, sister chromatids always have the same alleles and gene A is at the same locus On all four chromatids.
One chromosome from a pair that shares the same gene sequence, loci, chromosomal length, and centromere is referred to as a homologous chromosome. One chromosome from the father and one from the mother make up a homologous pair.
A sister chromatid is one that has two identical copies of a chromosome that are connected by a common centromere during chromosome DNA replication. In other words, a sister chromatid can also be thought of as "one-half" of a chromosome that has been duplicated. A dyad is a pair of sister chromatids. When all of the chromosomes in a cell are replicated during the synthesis (S) phase of interphase, a full pair of sister chromatids is produced. During mitosis or the second division of meiosis, the two sister chromatids split apart into two distinct cells.
Hence, homologous chromosome have same gene on similar chromosomes.
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