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

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:

__________

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

A. Meiosis

B. Mitosis

C.Fertilization

Answers

Answer:

B.

Explanation:

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.

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

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

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:

''.''

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.

Which choice correctly summarizes meiosis into one statement?

Answers

Answer: D

Explanation:

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.

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


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

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!

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

Answers

Answer:

wind                                        

Explanation:

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

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!

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.

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 :)

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:

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.

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.

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.

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

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

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:

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

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:

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.

Other Questions
There are four main presidential powers, which one do you think is the most important and why? Which number(s) below belong to the solution set of the equation? Check all that apply. x + 10 = 40A. 40B. 80C. 400D. 4E. 30F. 50 What is the length of the the midsegment of a trapezoid with bases of length 14 and 22?The length of the midsegment of a trapezoid with the given bases is Explain how the historical context affected a development taking place in the document Hey everyone i'm here with another question dont worry its easyso can you help me? :] After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year and an increase of 8% per year, the population is 34,560. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)y = 32,000(1.08)xy = 32,000(0.08)xy = 34,560(1.08)xy = 34,560(0.08)x cost for 1 kg sugar is 42 dollars how much is 380 grams worth PLEASE HELP ME I NEED HELP PLEASE HELP PLEASE GIVE THE ANSWER UNDER THE QUESTION AND RATIO in the figure, AC=20cm CD=22cm and AE=16cm find the length of BD. IM BEGGING YOU PLEASE PLEASE PLEASE HELPPRead the following excerpt from Kennedy's inaugural address and answer the question:I do not believe that any of us would exchange places with any other people or any other generation. The energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve itand the glow from that fire can truly light the world.Which of the following is an effective use of summary of this passage? The energy, the faith, the devotion that we bring to this effort will help our country, anyone who serves it, and the world. Kennedy believes that the people of that generation have special qualities that will make a difference not only in the country, but also in the world. I believe we are uniquely able to change our country and the world with our determination, beliefs, and dedication. This excerpt is from Kennedy's inaugural address, which is the speech to the nation when a president takes office. 1. Lines 1216: What sound or word does Szymborska emphasize?Describe its impact Select the correct blsector of the segment.MBM2MDM Mel buys a house for 352,000 she sells the house for 325,600 calculate the percentage loss of mell makes What is the GCF of 17 and 8? What made living conditions so strict for American Indians at a Spanish mission? Any one watch Tokyo ghoul and angels of death ;) Energy energy can be transferred from one form to another we use many Indrajeet Converse in our daily life observe carefully to find these energy conversion your home make a list of any ten convert including their names along with their energy chains On a field trip they take busses and vans. Each bus holds 60 people and each van holds 10 people. If 390 people went on the trip and they took a total of 9 vehicles, how many of each type of vehicle did they take? Read the excerpt from "Lady Liberty." The frame took more than two years to finish, and it was hard for me to imagine the dedication required to create such a magnificent structure. Papa said Eiffel formed twelve thousand iron pieces to the exact shape needed, and they fit together using seven million nails. Thin sheets of Bartholdi's hammered copper attached to Eiffel's frame. The coppers thickness was about the same as two pennies, and, combined with the frame, the pieces were one inch thick. They let the statue sway in the wind and expand and contract with heat or cold. It was designed so any stress was shifted to the steel supports inside although the sea air did turn the copper surface to a soft green tarnish. Which line from this excerpt contains subjective language? It was designed so any stress was shifted to the steel supports inside although the sea air did turn the copper surface to a soft green tarnish. The coppers thickness was about the same as two pennies, and, combined with the frame, the pieces were one inch thick. Papa said Eiffel formed twelve thousand iron pieces to the exact shape needed, and they fit together using seven million nails. The frame took more than two years to finish, and it was hard for me to imagine the dedication required to create such a magnificent structure. WILL GIVE BRAINLYSTOne way to build healthy relationships is to establish ground rules. These make expectations clear to everyone involved and set the tone for the group. Create two rules for group discussion that everyone in the group should follow. One should relate to how to respond when there is a disagreement. Then explain why these rules will help create a healthy environment for discussion.