What is the first step in DNA replication?
a
A new strand of DNA is created.
b The DNA helix unwinds like a zipper.
The two strands of DNA rewind into the double
helix.
d
none of the above

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

The simplest structures that can carry out all of the activities characteristic of life are:
A. cells.
B. atoms.
C. molecules.
D. crystals.

Answers

atoms as they are the simplest

Describe the process of water moving in and out of the cell.

Answers

Answer:

Water moves across cell membranes by diffusion, in a process known as osmosis. Osmosis refers specifically to the movement of water across a semipermeable membrane, with the solvent (water, for example) moving from an area of low solute (dissolved material) concentration to an area of high solute concentration.

Explanation:

What is the function of a phospholipid bilayer

Answers

Answer:

Phospholipid bilayers create a selectively permeable barrier to the movement of ions and molecules important for cellular function.

Answer: The phospholipid bilayer acts as a barrier to the passage of molecules.

Why might Ponyboy have idolized Pual Newman?

Answers

Ponyboy might have idolized Paul Newman because Paul Newman played many rebellious characters who Ponyboy could relate to. Some characters he played were “Fast Eddie” in The Hustler and a Southern chain gang member in Cool Hand Luke.

Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were
created by the removal of rock and soil through the process of _____.
OA. deposition
B
C. erosion
•D. weathering
glaciation

Answers

Option C i thinkkkkk

what is the meaning of biosphere​

Answers

Answer:

The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients. Earth's environmental spheres. Earth's environment includes the atmosphere, the hydrosphere, the lithosphere, and the biosphere.

Explanation:

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Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Answer this please I promise 30 points + mark as brainliest ( only relevant answers )

Answers

Answer:

X could be an Arecaceae

Both roses and ferns are used as ornamental plants

Explanation:

Hope I got this right!! I really love plants! aslo feel free to report this answer if I was wrong!

Is nature or nurture more important

Answers

Answer:

Yes

Explanation:

cus

it keeps us alive

The answer is completely subjective. I’ll assume you are talking about raising children simply because this vocabulary is often used in that case.

Nature can go from describing events out of our control, innate feelings, to describing the area we are raised in. Nature can go a long way with raising kids, in comes the theory’s of the “murder gene.” The aforementioned gene is a theory on the “murderous” behaviors in children sociopaths, or psychopaths. This theory exists because of some unexplainable behaviors the children have that were not taught, like hurting animals and lack of empathy.

In a more lose interpretation of Nature it can mean the area children are raised in. Like the different between a trailer park and a mansion. But generally Nature refers to innate, uncontrollable, behaviors.


On the other hand Nurture refers to the actual raising of the child. Referring back to the “murder gene” the question is if you could reverse the effects of the gene in children based on how you raise them. Nurture is also an argument for how kind you should be to your child as they are growing.

Personally I think Nurture is more important, but in all actuality a good balance is best.

What portions of RNA are cut out and discarded during the process of RNA editing

Answers

Answer:

 introns are portions of RNA that are cut out and discarded.

Explanation:

how do vital signs allow medical professionals to assess a patient's physiology and overall health

Answers

they measure the pulse rate and blood pressure of a patient, these can  help to determine if a patient has any diseases of the blood or if they are under stress.

True of False: Marsh was able to prove that animals changed over time.

Answers

Answer:

True

Explanation:

Hope this helps :D Have a great day..can i hav brainliest?

I think the answer is true


:):):):):):):):)

which level of the food chain is most affected by biomagnification

Answers

Answer:

animals near the top of the food chain are most affected because of a process called biomagnification. Many of the most dangerous toxins settle to the seafloor and then are taken in by organisms that live or feed on bottom sediments.

Explanation:

Have a great one!

Which person is collecting data through the participant observation method?
O A. William, who is reviewing the comments people wrote on
questionnaires
B. Dakota, who is calculating the results from a survey
OC. Hosea, who is watching people in their normal suroundings
OD. Brittany, who is reading research done by others

Answers

Answer:

C. Hosea, who is watching people in their normal surroundings.

Explanation:

Which choice correctly summarizes meiosis into one statement?

Answers

Answer: D

Explanation:

Why are bananas curved?

Answers

Answer:

It's because of the sun! Bananas are curved so they can retrieve sunlight. Bananas go through a process called 'negative geotropism'.What it means is that bananas grow away from the ground, instead of growing towards it, hence the 'negative' geotropism.

Explanation:

g.o.o.g.l.e lma o

Answer

It's because of the sun!

Explanation:

Bananas are curved so they can retrieve sunlight. Bananas go through a process called 'negative geotropism'. Meaning it grows away from the ground instead of towards it.

How is the Grand Canyon related to volcanic activity?

Answers

In the western Grand Canyon hundreds of volcanic eruptions occurred over the past two million years. At least a dozen times, lava cascaded down the walls of the Inner Gorge, forming massive lava dams that blocked the flow of the Colorado River. ... 1064 a series of eruptions built the park's namesake cinder cone.

hope this helps ^^

Answer:

In the western Grand Canyon hundreds of volcanic eruptions occurred over the past two million years. At least a dozen times, lava cascaded down the walls of the Inner Gorge, forming massive lava dams that blocked the flow of the Colorado River.

Explanation:

Where do the mineral resources in which society depends on come from

Answers

Answer:Without minerals we would not have electricity, food, or shelter. Minerals make today's technology-based life possible, but that's something many of us take for granted.

Explanation:Soil, rocks, and minerals provide essential metals and other materials for agriculture, manufacturing, and building. 7.7. Earth scientists and engineers develop new technologies to extract resources while reducing the pollution, waste, and ecosystem degradation caused by extraction.

PLEASE ASAP NEED HELP PLEASEEE !!!!

Answers

Answer:

Hunting in groups,  keen eyesight, chemicals to paralyze prey

Explanation:

Answer:

Hunting in groups

Keen Eyesight

and Camouflage

Explanation:

These are all the main adaptations that predators are born with. The rest of them do not help them at all. PLease give brainliest :)

Based on the diagram below, at which point is the most oxygen being
produced?
Oxygen in Plants and Time of Day
D
Dawn
Dusk
Dawn
OA. Point B
O B. Point C
OC. Point A
O D. Point D

Answers

Answer:

Point C dusk

Explanation:

if you follow the chart, the highest point is point C

What process in humans is a good representation of asexual reproduction?

A. Meiosis

B. Mitosis

C.Fertilization

Answers

Answer:

B.

Explanation:

The _______________ rate describes the rate at which the atmosphere gets colder as the air gets thinner at higher altitudes.

Answers

Answer:

Lapse rate

Explanation:

AHHHHSHYNJTNXT WHYYYYY

What agent of erosion is this? Gravity,wind, waves, running water or glaciers.

Answers

Answer:

wind                                        

Explanation:

What is the energy source that allows photosynthesis to occur?

Answers

Answer:

[tex]\boxed {\boxed {\sf The \ sun }}[/tex]

Explanation:

Photosynthesis is a special process that certain organisms (plants, algae, and some bacteria) undergo to create "food".

This turns light energy, carbon dioxide, and water into glucose and oxygen. The glucose becomes the food for the organism, because it is turned into ATP during cellular respiration. The ATP is energy that fuels the processes, like growth, repair, and transport.

This process occurs because of the sun. It provides the light energy needed for the reaction. Organelles inside of the cells, called chloroplasts, contain a pigment (chlorophyll) that captures this energy.

What is antibiotic resistance and why should we be
worried?

Answers

Answer: Antibiotic resistance is when bacteria develops a resistance or an immunity against antibiotics. If this evolution/adaptation becomes widespread, our healthcare system could see a mass rise in deaths due to us not being be able to effectively treat the bacteria which is causing harm.

Explanation:

I learned about this

All living organisms store genetic information that can be passed on from parent to offspring. How does the biomolecule responsible for storing this information differ from other biomolecules?

Answers

Answer:B

Explanation:

Color blindness is a X-linked recessive trait. A couple want to predict whether it would be possible for their child to be color blind. The female is an unaffected carrier and the male is red/green color blind. What percentage of offspring would be color blind? ​

Answers

Answer: There is a probability (n.b. NOT certainty) that half of all offspring will be colour blind.

Explanation: The female is XX and as an unaffected carrier we can assign genotype Cc where c is the recessive allele.

The male is XY and colour blind, so genotype cY

Male offspring can be cY or CY so p|colourblind = 50%

Female offspring can be Cc or cc so, again p= 50%

If there is also equal probability of sex of the offspring, there is an overall probability that half the offspring will be colour blind

Which antivenom will save Tyler?

Select one:

a.
Antivenom A


b.
Antivenom B


c.
Antivenom C


d.
Antivenom D

Answers

the answer is anticenom A

Answer:

A

Explanation:

It is A

The cell part that helps with cell division is the ________​

Answers

Answer:

centrioles

Explanation:

Every animal-like cell has two small organelles called centrioles. They are there to help the cell when it comes time to divide. They are put to work in both the process of mitosis and the process of meiosis.

During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a △G of -20 kcal/mol. If you double the amount of enzyme in the reaction, what will be the △G for the new reaction?


A. +20 kcal/mol

B. -40 kcal/mol

C. -20 kcal/mol

D. -10 kcal/mol

Answers

Answer:

Option-C

Explanation:

Delta G (△G) refers to the overall energy released during a chemical reaction when equilibrium is reached i.e the rate of conversion of product into the substrate is equal to the rate of conversion of substrate into product. Thus, △G accounts for the equilibrium of the reaction.

In the given question, it has been mentioned that △G of a reaction is -20 kcal/mol then how will it change if the amount of enzyme is doubled.  

The △G is not affected by the enzyme concentration as the presence of enzyme affects the G (Gibbs free energy) and activation energy.

Therefore, △G will remain the same even if the amount of enzyme is doubled i.e -20 kcal/mol will be the correct value.

Thus, Option-C is the correct answer.

What type of cell is more likely to replicate and replicate faster brain cell or hair cell

Answers

Answer:

hair cells is most likely to replicate faster than the brain cell

Explanation:

__________

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