Which of the following separates the DNA strands during replication

a.
helicase

b.
nuclease

c.
ligase

d.
DNA polymerase I

e.
primase

Answers

Answer 1

Answer:

I think it's b not sure though


Related Questions

Which of the following would not produce more electricity when a magnet is moved
back and forth through a coil of wire?
1 moving the magnet faster
2 adding more coils
3 using a stronger magnet
4 using longer wire​

Answers

Answer:

moving the magnet faster thats the answer i can give not sure bit by incerasing coils electrycity is more produced

Moving the magnet faster  would not produce more electricity when a magnet is moved.

What is magnet?

A substance or thing that creates a magnetic field is called a magnet. The most noteworthy characteristic of a magnet—a force that pulls on other ferromagnetic elements, such as iron, steel, nickel, cobalt, etc.—as well as the ability to attract or repel other magnets—is caused by this invisible magnetic field.

An object made of a substance that has been magnetized and produces its own persistent magnetic field is referred to as a permanent magnet. A common example is a refrigerator magnet used to keep notes on the door of the refrigerator.

Ferromagnetic materials are those that can be magnetized and are also those that are powerfully drawn to a magnet (or ferrimagnetic). These comprise some naturally occurring materials as well as the metals iron, nickel, and cobalt as well as their alloys.

Therefore, Moving the magnet faster  would not produce more electricity when a magnet is moved.

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A group of similar organisms that can meet with each other in produce fertile offspring is a

Answers

Answer:

A species is the answer :)

The answer is species.

Based on your understanding of nucleic acids, what type of bonds form between the CRISPR/guide RNA molecule and the target DNA

Answers

Answer:

The single guide RNA forms hydrogen bonds with DNA, while Cas9 hydrolyzes phosphodiester bonds

Explanation:

The base pairing between nucleic acid strands (either DNA or RNA) is through hydrogen bonds between nucleotide bases. In DNA, Adenine always forms two hydrogen bonds with Thymine, while Guanine always forms three hydrogen bonds only with Cytosine. Moreover, adjacent nucleotides in the same strand are covalently linked by phosphodiester bonds (i.e., covalent bonds between the 5' phosphate group of one nucleotide and the 3'-OH group of another). The CRISPR/Cas9 genome editing systems make use of single-guide RNAs (sgRNAs) that interact with DNA through hydrogen bonds. These sgRNAs have perfect complementarity to the target DNAs in order to bind them. On the other hand, Cas9 is an enzyme that hydrolyzes phosphodiester bonds in both DNA strands very precisely and accurately by using a sgRNA complementary to a specific DNA sequence.

Orange tree adaptation

Answers

Answer:

Blue tree adaptation...

Which of the following best describes what scientists consider when they study ecology? A. the interactions of organisms with their environment B. the interactions of organisms with weather and climate C. the interactions of organisms to reproduce and produce offspring D. the interactions of organisms with one another and the environment​

Answers

Answer: A

Explanation:

I’m smart duhh

Answer: A

Explanation: It is resonable

Dichotomous key practice: a key to insects
Please help !!!!!!!!!!

Answers

Answer:

Answer to 1 is a grasshopper (order Orthoptera)

Answer to 2 is a dragonfly (order Odonata)

Answer to 3 is a fly (order Diptera)

Answer to 4 is a bee (order Hymenoptera)

Answer to 5 is lady bug (order Coleoptera)

Answer to 6 is an aphid (order Hemiptera)

Answer to 7 is a butterfly (order Lepidoptera)

Hope this helped you.

Explanation:

Answer to 1: is a grasshopper (order Orthoptera). Orthopterans have a cylindrical body, with elongated hind legs and musculature adapted for jumping.

Answer to 2: is a dragonfly (order Odonata). Thise groups have minute antennae, two pairs of transparent membranous wings with many small veins, a long slender abdomen, extremely large eyes, an aquatic larval stage (nymph) with posterior tracheal gills.

What is dichotomous key?

A dichotomous key is refer to as an important scientific tool which is used to identify different organisms, based the organism's observable traits. Dichotomous keys comprises of a series of statements with two choices in each step that will lead users to the correct identification.

Answer to 3: is a fly (order Diptera). This group are true flies, are a large and diverse group that includes midges, mosquitoes, and all manner of flies. Diptera literal means "two wings," the unifying characteristic of this group.

Answer to 4: is a bee (order Hymenoptera). This group have small to medium-sized insects, usually with four membranous wings and a narrow waist which sets off the abdomen from the thorax, or middle region of the body.

Answer to 5: is lady bug (order Coleoptera). This group have sheath-winged which is the hardened forewings (elytra) six legs and antennae.

Answer to 6 is an aphid (order Hemiptera). This group is called as true bugs and have forewings that are hardened at the base and membranous at the tips.

Answer to 7: is a butterfly (order Lepidoptera). This group are typical insects, in which they have 4 wings, 6 legs, 2 antennae.  The body divided into 3 sections such as a head, thorax and abdomen. The leg and wings are attached to the thorax.

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utiliza el calor producido por un reactor nuclear​

Answers

Answer:

Boil water into steam

Explanation:

As the turbine blades turn, they drive generators that make electricity. Nuclear plants cool the steam back into the water in a separate structure at the power plant called a cooling tower, or they use water from ponds, rivers, or the ocean. The cooled water is then reused to produce steam.

Two Bio 45 students are having a disagreement about renal function. Dan says that the kidneys work harder when you eat a high-salt diet, whereas Peter says that they work harder when you drink lots of water.

Answers

The kidney works harder when you drink lots of water, no water = kidney failure.

¿De qué manera pueden complementarse la
teoría Sintética y la teoría de los Equilibrios
Puntuados?

Answers

La teoría sintética

El redescubrimiento en 1900 de la teoría de la herencia de Mendel por el botánico y genetista holandés Hugo de Vries y otros llevó a un énfasis en el papel de la herencia en la evolución. De Vries propuso una nueva teoría de la evolución conocida como mutacionismo, que esencialmente eliminó la selección natural como un proceso evolutivo importante. Según de Vries (a quien se unieron otros genetistas como William Bateson en Inglaterra), en los organismos tienen lugar dos tipos de variación. Una es la variabilidad "ordinaria" observada entre los individuos de una especie, que no tiene consecuencias duraderas en la evolución porque, según de Vries, no podría "conducir a una transgresión de la frontera de la especie [es decir, al establecimiento de nuevas especies] incluso en las condiciones de la selección más rigurosa y continua ". El otro consiste en los cambios provocados por mutaciones, alteraciones espontáneas de genes que dan lugar a grandes modificaciones del organismo y dan lugar a nuevas especies: “La nueva especie se origina así de repente; es producido por el existente sin ninguna preparación visible y sin transición ”.

Muchos naturalistas se opusieron al mutacionismo y, en particular, los llamados biometristas, liderados por el estadístico inglés Karl Pearson, quien defendió la selección natural darwiniana como la principal causa de la evolución a través de los efectos acumulativos de variaciones individuales pequeñas y continuas (que los biometristas se supone que pasa de una generación a la siguiente sin estar limitado por las leyes de herencia de Mendel).

In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant over the white allele (b). Two heterozygous guinea pigs are crossed. Draw a genetic diagram with the genotypic, phenotypic and ratio information of the P₁ and F ₁ generations of this cross.​

Answers

Answer:

See

Explanation:

Given:

Brown allele (B) is dominant over the white allele (b).

It will be assumed that the alleles are not related to the X and Y chromosomes.

See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)

For both parents hetero-zygous,

P1:

Genotype: Bb (100%)

Phenotype: brown (100%)

F1:

Genotypes : BB, Bb, bB and bb in equal proportions, i.e.

BB (25%), Bb (50%), bb (25%)

Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)

Fluorescent FM dyes partition reversibly into biological membranes without penetrating through them. Suppose that you have neurons cultured in a dish, and you incubate them with an FM dye for a period of time before washing the cells with excess medium to remove the dye.a)You find that if you stimulate the neurons to trigger action potentials during incubation with the dye, the synaptic regions of the neurons remain fluorescent after the wash. Propose an explanation for this effect.b)After you have generated fluorescent synaptic regions by this procedure, suppose that you trigger further action potentials while continuing to wash with excess medium. Would you expect the synaptic regions to lose fluorescence

Answers

Answer:

a) Emission observed is due to emission of synaptic vessels

b) Yes

Explanation:

a) Proposing an explanation

The emission observed ( the synaptic regions of the neurons remaining fluorescent ) is due to the emission on the synaptic vessels given that FM dyes have lipid-sensitive emission which can be loaded into a recycled synaptic vesicle

b)

The synaptic regions will lose fluorescence when you continue to wash with excess medium, also the more action potentials triggered the more observed emission. hence the increase in the loss of fluorescence is due to the fact that the emissions are not permanent

Viruses and bacteria can infect human cells. Bacteria are living organisms, while viruses are not. How do you think the treatment for viral and bacterial illnesses differ? How do you think they affect healthy body cells? Explain your response.

Answers

Bacteria cause bacterial infections. Viruses cause viral infections. Antibiotic medicines kill or keep many bacteria from growing but don't treat viruses.

What is a virus?

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.

The virus works by damaging the wall and the lining of the alveolus and capillaries. The debris from the damage, which is plasma protein accumulates on the alveolus wall and thickens the lining. As the walls' thicken, the transfer of oxygen to the red blood cells is impaired.

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3. If you were looking at a cell that had all of its chromosomes lined up down the middle of
the cell, what phase must it be in?
1. Telophase
2. Prophase
3. Metaphase
4. Anaphas

Answers

Answer:

3. Metaphase

Explanation:

Metaphase is the stage in the cell cycle where the chromosomes line up in a line down the middle of the cell (some people call it the metaphase plate).

The way I like to remember it is: Metaphase is in the Middle.

I hope this helps! :D

Answer:

I'm sorry hindi ko po alam

What is the answer answer to number one will mark brainlist

Answers

Answer:

GGATTTGGCCCTATA

Explanation:

A pairs with T and C pairs with G. This is called the complementary pairing.

So answer is GGATTTGGCCCTATA

Drag two black mice into the Parent 1 and Parent 2 boxes. Click Breed to view the five offspring of these parents. What do the offspring look like

Answers

Answer:

The correct answer is - All offsprings are black-furred mice.

Explanation:

In this case, the parent mice are black and a cross between these mice produces offspring one allele from both parents. Here, black fur is dominant over white fur.

All the babies are with dark fur colors, no whites as black is a dominant color, so it produces black due to cross between two true breeds.

     B    B

B   BB   BB

B   BB   BB

BEST ANSWER GETS BRAINLIEST!!!!!!1

A polygraph test is conducted, and the findings indicate that there is an 80 percent chance of deception. What does this mean for the investigation?

The suspect is guilty and should be arrested for the crime.
The suspect is probably just nervous since 80 percent is a pretty high number and usually indicates a false positive.
The suspect might be guilty, but more information is needed from other parts of the investigation.
There has been a mistake in the polygraph test, and the test should be conducted again to get better results.

Answers

Answer:

The suspect might be guilty, but more information is needed from other parts of the investigation.

Explanation:

Due process states innocent until proven guilty. Having an 80 percent chance of deception is not solid proof of anything. It does, however, bring more speculation to the table that this person is indeed guilty, but because there is no actual proof, the investigators must find more information on the matter.

how do allosteric enzymes activate and inhibit chemical reactions in a living organism?​

Answers

Answer:

Allosteric activators bind to locations on an enzyme away from the active site, inducing a conformational change that increases the affinity of the enzyme's active site(s) for its substrate(s). Allosteric inhibitors modify the enzyme's active site so that substrate binding is reduced or prevented.

Explanation:

thank me later

Which word best describes the response the seedlings are shown?

Answers

Possibly Seed germination

¿A qué se refiere la sexualidad libre de coerción y violencia?

Answers

Para las mujeres y las niñas, el derecho a controlar su propio cuerpo y su sexualidad sin ningún tipo de discriminación, coerción o violencia es fundamental para su empoderamiento. Sin derechos sexuales, no pueden realizar sus derechos a la autodeterminación y la autonomía, ni pueden controlar otros aspectos de sus vidas. De hecho, son los intentos de controlar la sexualidad de las mujeres y las niñas los que dan como resultado muchos de los abusos de los derechos humanos que enfrentan a diario, incluida la violencia de género, el matrimonio forzado, la mutilación genital femenina y limitaciones en su movilidad, vestimenta y educación. , empleo y participación en la vida pública. Lo mismo ocurre con las lesbianas, los hombres gay, las personas bisexuales, las personas transgénero, las trabajadoras sexuales y otras personas que transgreden las normas sexuales y de género y que, como resultado, enfrentan un mayor riesgo de violencia, estigma y discriminación. Está claro: los derechos sexuales sustentan el disfrute de todos los demás derechos humanos y son un requisito previo para la igualdad y la justicia.

A nivel mundial, existe un gran debate sobre si definir los derechos sexuales y cómo hacerlo. IWHC cree que para superar algunas de las barreras políticas al reconocimiento, respeto, protección y cumplimiento de los derechos sexuales, necesitamos aclarar cuáles son.

IWHC, en colaboración con otras organizaciones líderes de derechos humanos y salud sexual, ha desarrollado la siguiente definición de trabajo de derechos sexuales:

Los derechos sexuales abarcan ciertos derechos humanos que ya están reconocidos en las leyes nacionales, documentos internacionales de derechos humanos y otros documentos de consenso. Se basan en el reconocimiento de que todas las personas tienen derecho, libres de coerción, violencia y discriminación de cualquier tipo, al más alto nivel posible de salud sexual; perseguir una vida sexual satisfactoria, segura y placentera; tener control y decidir libremente, y con el debido respeto a los derechos de los demás, sobre asuntos relacionados con su sexualidad, reproducción, orientación sexual, integridad corporal, elección de pareja e identidad de género; ya los servicios, educación e información, incluida la educación integral en sexualidad, necesarios para ello.

Science- bbbbbbbbbbb

Answers

The answer is Y-axis
Y axis IM RIGHTT I think that’s what I got btw

The force between two objects is called_______
1) Electrical conductor
2) Voltage
3) Electric Force
4) Electric Field

Answers

Answer:

4.) Electric Field

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the answer is electric field

he conversion process where nitrogen gas combines with hydrogen to form ammonium ions, which is accomplished through the intense energy of lightening, or when air in the top layer of soil comes into contact with certain bacteria, is known as

Answers

Answer: The conversation process where nitrogen gas combines with hydrogen to form ammonium ions is known as THE ACTION OF THUNDERSTORMS while when air in the top layer of soil comes into contact with certain bacteria, nitrogen in the air is converted by NITROGEN- FIXING MICROORGANISMS.

Explanation:

About 79% of air is composed of gaseous nitrogen. However, only a few microorganism can make use of this nitrogen. The important sources of nitrogen for plants and most living organisms are the inorganic nitrogenous compounds in soil. In nature, nitrogen is constantly being removed from the soil and returned to it through the NITROGEN CYCLE

Conversation of gaseous Nitrogen into nitrogenous substances such as ammonium and amino-compouds are carried out by:

--> The action of thunderstorms, and

--> NITROGEN- fixing microorganisms.

During thunderstorms, Nitrogen reacts with oxygen to form nitric oxide. The nitric oxide is oxidizes to Nitrogen peroxide which dissolves in rainwater to form nitric and nitrous acid. When these acids enter the soil, they combine with mineral salts to form nitrates. The nitrates then, dissolve in soil water and are absorbed by the plants. These nitrates are converted into plant proteins and become part of the plant body.

Some microorganisms such as the Nitrogen fixing microorganisms are able to absorb nitrogen from the atmosphere and change it into amino-compouds and proteins. Examples of such microorganisms include:

--> the free living bacteria: these include the azotobacter and clostridium

--> the symbiotic bacteria: the rhizobium which is found in the root nodules of leguminous plants

22. Which of these conditions would most likely be shown in the fossil record as a
reason for mass extinctions?

Answers

Answer:increased competition for resources

Explanation:

A child is born with hemophilia (inherited as an X-linked recessive) and Klinefelter's syndrome to parents who both have normal blood clotting. In which parent (mother or father) and during which round of meiosis (I or II) did the nondisjunction event occur

Answers

Answer:

mother  

Explanation:

Hemophilia is a sex-linked recessive disorder caused by a mutation in one of the genes responsible for encoding the clotting factor proteins (factor VIII or factor IX), which are located on the X chromosome. Moreover, the Klinefelter syndrome is caused by men having an additional X chromosome. In this case, the nondisjunction occurred from the mother because her gamete included an extra X, it is for that reason that all genes localized on the X chromosome, including the defective gene involved in hemophilia, can cause all of her sons to be affected by the disease in some generation. Thus, sister chromatids did not separate during meiosis (Anaphase II) and caused two copies of the defective allele for the hemophilia trait.

Please answer!! 20 POINTS AND BRAINLIEST

Answers

Answer:

1.crust

2.Divergent boundaries

3.tectonic plates

4.seismograph

5.S-waves

6.P-waves

Explanation:

Using complete sentences:

Describe the difference(s) between local and global winds.

Answers

Explanation:

The term global winds refers to the six major wind belts that encircle the globe.

Local winds, however, are the winds, or breezes, that are stirred up by the temperatures and topographical features of a small region or area. This is especially true of coastal areas.

Imagine you are a plant breeder. Friends sent you two different varieties of a snapdragon flower; each have golden leaves rather than green leaves. (Wild-type snapdragon plants have green leaves.) A cross between the two different varieties of golden snapdragons always produces progeny that have green leaves. This is an example of:

Answers

Answer:

Complementation.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

A trait refers to the specific features or characteristics possessed by a living organism. It is essentially transferred from the parent of a living organism to her offspring and as such distinguishes him or her. Some examples of traits in genetics are colorblindness, handedness, curly hair, height, complexion, weight, hair color, dimples, tongue-roll, etc.

Artificial selection is also known as selective breeding and it is a process that involves humans (breeders) selecting the animal or plant with desirable traits in order to reproduce favorable offspring having phenotypic traits.

Complementation can be defined as a relationship between two strains of a living organism both having distinct homo-zygous recessive mutations and results in the expression of a wild-type phenotype when crossed or mated.

In this scenario, there are two different varieties of a snapdragon flower having golden leaves rather than green leaves. Thus, crossing two different varieties of golden snapdragons would produce offsprings that have green leaves.

Hence, the above breeding is an example of complementation.

What is the main protein in bone

Answers

Answer:

Collagen

Explanation:

What are the applications of CRISPR/Cas9-mediated Epigenetic Editing?

The CRISPR/Cas9 with the advantages of low cost and ease of use gives researchers the opportunity to manipulate the epigenome and observe its possible effects on cell function, development, and differentiation (Figure 1). Using non-active dCas9 (another type of Cas9 lacking nuclease activity but retaining DNA binding activity) fused enzymes such as DNA methylase, histone acetyltransferase, and deacetylase can be targeted to alter the epigenetic state of precise locations within the genome.

https://www.creative-biogene.com/crispr-cas9/solution/crispr-cas9-mediated-epigenetic-editing.html

Answers

Answer:

Applications:

- silence gene expression of target genes

- activate gene expression of target genes

- determine the role of DNA methylation and histone modifications (methylation, acetylation, etc) on specific regulatory sites (e.g., enhancer sequences)

Explanation:

The CRISPR/Cas9 system can be repurposed to edit the epigenome of living cells. For this purpose, it is required 1-to fuse a catalytically inactive 'dead' Cas9 enzyme with enzymes involved in epigenetic mechanisms (e.g., DNA methyltransferases, histone deacetylases, etc) capable of activating or deactivating gene expression, and 2-to design single-guide RNAs (sgRNAs) complementary to the sequence of interest (i.e., target sequences whose epigenome landscape we are trying to modify). For example, dCas9 gene has been fused with the DNA methyltransferase 3a (Dnmt3a) gene to create a dCas9-DNMT3A complex which can be combined with a specific sgRNA in order to study the effects of DNA methylation at a particular gene. These CRISPR/Cas9-mediated epigenome editing systems have shown to be very useful to understand how epigenome drives chromatin folding and dynamics at specific genomic sites (loci), and thus regulate gene expression at the transcriptional level.

Some plant seeds have special spiky barbs that can easily get tangled in an animal's fur. The spiky structure of these seeds most likely benefits a plant by

A. keeping animals far away from the parent plant.

B. keeping the seeds from being moved away from the parent plant.

C. attracting pollinators with their bright color and fruity smell

D. helping the seeds to be scattered in new areas to grow.

Answers

D. helping the seeds to be scattered in new areas to grow
D. helping the seeds to be scattered in new areas to grow.
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find the exact value of cos A in simplest radical form A bag contains 4 blue marbles, 6 red marbles, 3 yellow marbles, and 5 black marbles. What is the probability that you choose two marbles, without replacement, that are both black? Answer as a decimal to the nearest thousandths place (3 after the decimal). Look at the table of dissociation constants for some acids. Acid Ka Acetic acid 18 x 10-6 1.2 x 10-2 Chlorous acid Nitrous acid 4.0 x 10 -4 Propionic acid 1.3 x 10-5Which of these is the strongest acid? acetic acidchlorous acid nitrous acid propionic acid*Answer is B* You are Hari Singh from "The Thief's Story". On your way home from work, you were pickpocketed. Thankfully, a student from the nearby neighborhood school noticed and chased down the thief who returned you your wallet. Write a letter of commendation in 100-120 words to the student's principal, conveying the incident and your gratitude to the teenager. If a piece of pure gold jewelers weighs 11.81 grams, how many atoms is it made of? which triangles are similar? why should I even bother to vote Jasmine recorded the number of minutes she spent doing homework each day during the months of March and April.The box plot shows her data for March. find the measure of the angle of elevation of the sun to the nearest degree, if a 100ft tall building casts a 150ft shadow. The distribution of the amount of money in savings accounts for Florida State students has an average of 1,200 dollars and a standard deviation of 900 dollars. Suppose that we take a random sample of 10 Florida State students and ask them how much they have in their savings account. The sampling distribution of the sample mean amount of money in a savings account is Choose the correct answer.Her explanation was accepted by both Jacob and her.The underlined pronoun is a(n)case pronoun.object of prepositionsubjectiveO objective What is the process by which water vapor in the air changes into liquid water? 0.835 - 0.423Answers 0.5120.4120.4020.418 What is the surface area of the cylinder with height 4 in and radius 5 in? Round your answer to the nearest thousandth . When the log (of the same base) is the outermost step on both sides of the equation, the logs ___.1. are added2. are divided3. are subtracted4. cancel out5. are multiplied The impact of taxes on different groups in society varies. Some taxes create a larger burden for poorer people while others create a larger burden for wealthier people. Arrange the tax classifications according to the level of burden placed on poorer people. What is one major drawback of filing for bankruptcy?A. It increases the fees a person must pay on a debt.B. It forces a person to take out even more loans.C. It splits a person's debts between many banks.D. It greatly lowers a person's credit score Is the ordered pair (5,-6) a solution of the following system of linear equations?6x + 3y = 124x + y = 14A) No, the ordered pair is not a solution.B) Yes, the ordered pair is a solution. Anyone wanna help me Answer this for my homework!