during replication, which enzyme unwinds the dna double helix?

Answers

Answer 1

DNA helicase enzyme unwinds and breaks H bonds between the 2 complementary strands using ATP to separate the 2 strands.


Related Questions

Which of the following structures is part of the peripheral nervous system?

*Cranial and spinal nerves
Brain
Spinal cord
None of the above

Answers

Answer:

a. Cranial and spinal nerves

Explanation: is correct

what is the answer tho just asking?

Answers

Answer:

I don't see any thing lol

how do you propagate trees​

Answers

Answer:

The simplest method of propagating a tree vegetatively is rooting or taking cuttings. A cutting (usually a piece of stem of the parent plant) is cut off and stuck into soil.

Remove any flowers or fruit on the cutting. Trim the stem to just below where the bottom most leaf meets the stem. On each of the leaves on the stem, cut off half of the leaf. Put the end to be rooted.

true or false along with natural selection,genetic drift has profoundly affected the evolution of human traits throughout our species history

Answers

Answer:

yes

Explanation:

due to drift / variation human has been able to atttain high and advanced level of intelligence and development

Which of the following is NOT part of the non-specific immune response?
A. Inflammation
B. Phagocytosis
C. Antibodies
D. Interferons

Answers

D.Interferons. .......

D. Interferons are not a part of the non-specific immune response.

What is the function of interferons?

Interferons were first described as an antiviral thing that interferes with viral replication in mammalian cells (10). they're secreted from inflamed cells and spark off an innate immune reaction that promotes now not best cytokine production but additionally herbal killer mobile features and antigen presentation.

Interferons (IFNs) — the body's first line of antiviral defense — are cytokines that are secreted by host cells in reaction to virus infection. by using inducing the expression of hundreds of IFN-inspired genes, numerous of that have antiviral capabilities, IFNs block virus replication at many ranges.

Interferons are a circle of relatives of clearly-happening proteins which are made and secreted with the aid of cells of the immune gadget (an example, white blood cells, natural killer cells, fibroblasts, and epithelial cells).

Learn more about Interferons here: https://brainly.com/question/26748113

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the three steps that are required for dna replication are

Answers

Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

The three steps that are required for DNA  replication are initiation, elongation and termination.

What is DNA replication ?

The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.

It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.

An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.

Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.  

It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.

Termination occurs in the last step, when the parent molecule has been completely replicated.

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What happens in prophase.

Answers

During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase. ... Cohesin forms rings that hold the sister chromatids together, whereas condensin forms rings that coil the chromosomes into highly compact forms.

Cellular respiration is a complex process that

1- occurs before autotrophs are able to carry out photosynthesis

2- occurs only in animals that take in oxygen

3- is performed only by organisms that are incapable of photosynthesis

4- breaks down organic molecules to release stored energy

Answers

The answer is option 4

what is the purpose of a broth in a microbiology laboratory

Answers

In microbiology laboratory, broth is very vital. Its purpose is to provide growth medium for the available bacteria necessary for working on the nutrients. Broth gives steady and constant nutrients for the bacteria to quickly reproduce. It is normally a clear liquid made from bones, meat or vegetables.

I need help for Monday pls

Answers

Answer:

Explanation:

1.foods

2. lemons or any of acidic fruit

3.washing powder

4. arrhenius Acid

5. hydrogen

6. alkali/ base

7. water?

8. alkali

9. hydroxide

unsure about the rest sorry

Answer:

((1))●many __foods__

●__vegetables__

●such as __detergents__

((2))

acids

a) H

H2O

b) hydronium

((3))

bases

a)Hydroxide

Water

separate

b)water

hydrogen

hydroxide

B

1) pH

inverse

a) acidic

b) basic

........ BRAINLIST.....:)

When is it important to drink water?

Answers

Answer:

d. All of the above

Explanation: correct

Answer:

? why did you post this

Explanation:

What does a ribosome do.

Answers

The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.
A ribosome is a cellular particle made of RNA and protein that serves as the site for protein synthesis in the cell. The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.

which of these organs is an accessory organ of the digestive system?

Answers

Answer:

Where is the picture??

Explanation:

what factors are examined by the field of demography? check all that apply.

Answers

Answer:

Demography is the statistical study of human populations. Demography examines the size, structure, and movements of populations over space and time. It uses methods from history, economics, anthropology, sociology, and other fields.

Which statement correctly describes mitotic cell division?​

Answers

Answer:

Explanation:

“Although part of your question is missing, you might be referring to this full question:

Which of the following correctly describes how mitosis and meiosis are similar?

A. Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis.

B. Crossing over occurs between homologous chromatids during both mitosis and meiosis.

C. Both mitosis and meiosis produce diploid daughter cells.

D. Both mitosis and meiosis produce genetically identical daughter cells.”

The statement that correctly describes how mitosis and meiosis are similar is “Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis”.  

Mitosis and Meiosis both are classified under cell division that tends to take place in humans and certain other animals. Both Mitosis and Meiosis have both differences and similarities in the way they result in new cells with varying goals and slightly different outcomes. Some of the similarities between meiosis and mitosis are:

During both mitosis and meiosis, cells must duplicate their DNA and pull them apart into 2 sets and further place the sets on each end of itself and then divide down the middle part

Both meiosis and mitosis results in fresh new cells depending on the genes of their parent cells  

Thus, we can conclude that the statement that correctly describes how mitosis and meiosis are similar is “Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis”. Hence, option A is the correct answer.

A trait that is masked or hidden unless there are two is called ...

(Mendelian Genetics Notes)

(1 Point)


an allele

recessive

dominant

incomplete dominant

Answers

Answer:

recessive gene

Explanation:

mainly masked by thee dominant gene eg Tt where T is dominant over t,,,there t is recessive..

Some fungal species live in or on plants, producing compounds that can kill herbivores while feeding off of sugars from its plant host. What type of relationship does this fungus have with its host

Answers

This is a symbiotic relationship because both the plant gets benefitted with protection from the fungus, and the fungus gets benefitted by getting food from the sugars in the plant.

if sodium hydroxide is left alone what state would it turn into ?

Answers

Answer:

It will react with the carbon dioxide that is in the air

Explanation:

When it reacts it will turn to sodium carbonate

Hope this Helps

True or False: Microbiomes are found only within the body of a host, which may be animal, plant, fungal, or even protist.

Answers

True, microbiomes are found only within the body of a host.

which type of blood vessel drains blood from the glomerulus?

Answers

Answer:

the efferent arteriole

Explanation:

Blood is brought to the glomerulus by the afferent arteriole, and after the filtration process, the blood is carried away from the glomerulus by the efferent arteriole.

the efferent arteriole.

what are the effects of pollution on the atmosphere?

Answers

Answer:     This can kill crops or reduce their yield. It can kill young trees and other plants. Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere.

Explanation:

True or false: Tonic contraction of smooth muscle in blood vessels is important in maintaining blood pressure.

Answers

the answer is true
hope this helps
and i hope i’m right lol

What are organic reservoirs meaning.

Answers

The carbon cycle and carbon reservoirs
Most of Earth's carbon is found in inorganic reservoirs such as rocks, water, and sediments. Only a small portion is stored in organic reservoirs, such as in the bodies of living organisms. ... Carbon cycles on land via weathering, runoff, sedimentation, and soil accumulation.

What controls basic functions such as breathing, heart rate, and pulse?


A.cell body

B.spinal cord

C.frontal lobe

D.brain stem

Answers

The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.

Answer: brain stem

What does insulator mean

Answers

As insulator is a material that doesn't transmit energy easily

Where is the center of the cold air mass? ( name the region of the state near the center)

Answers

The center of this air mass is a high pressure center located in northern Montana

The ____________ receives the filtrate from the DCTs of several nephrons and funnels it toward the ____________ .

Answers

Answer:

collecting duct, renal pyramid

Explanation:

The collecting duct receives the filtrate from the DCTs of several nephrons and funnels it toward the renal pyramid.

Clouds form when the water vapor in air condenses as

Answers

Answer:

Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.

Explanation:

Without land regulations to protect rainforests, and continues to be destroyed using slash and burn methods Which environmental impact of rainforest deforestation makes rainforest species less resilient to
change?
Increased fire and drought
Increased pollution
Displaced inbes
Habitat fragmentation

Answers

Answer:

Increased pollution is your answer!

Explanation:

Increased pollution is your answer because:

1. ⇒ Burning of mostly anything creats, and all the materials in the forest are one of those materials that will create smoke. And smoke is made out of carbon dioxide, and other poisonous gases that are very bad for our atmosphere.

2. ⇒ The damage from the fire will also cause a lot of damage to the trees and plants. That is very bad because trees are very important for our environment, in their leaves, they have a chemical called chlorophyll, this chlorophyll absorbs sunlight and turns it into oxygen. Not only sunlight is needed, there is also, water, nutrients needed.

I hope I could help you today! Thanks!

Have a great day studying!

What is an opposing viewpoint to the idea that climate change is real? (no links)

Answers

Well, some could say that climate change is just another phase of earth acting up again because millions of years ago, the earth warmed up to a point where there was practically no ice and we’re just waiting in the process. But err, I don’t know. Most people who think climate change isn’t happening are those who aren’t experiencing it in real time so….
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