To study the mechanism of DNA replication, Meselson and Stahl labeled both strands of a DNA molecule with nitrogen-15 and then tracked the location of this label after one round of replication. which composition describes the products they found?

A. Both double helixes were composed of small segments of the
original strands and small segments of new strands.
B. Both double helixes were composed of large segments of the
original strands and large segments of new strands.
C. Both double helixes were composed of one original strand and
one new strand.
D. One double helix was composed of the two original strands, and
the other was composed of two new strands.

Answers

Answer 1

Answer:

The answer is C.

Explanation:

The original strand is split apart in half, those are added to two new strands. Which makes each double helix part original and part new strand. This is the correct answer, as I just took the test.


Related Questions

please help need answer. ​

Answers

Answer:

Non-use of drugs:

1. A teen is with family and friends.

2. A teen is a healthy student and athlete

3. A teen is focused and living life free and happy.

Use of drugs:

1. A teen doesn't socialize and doesn't around too many people due to social anxiety caused by the use of drugs.

2. A teen has health problems in his liver and kidney due to the abuse of drugs and is not able to play any sports due to this permanent health condition.

3. A teen is in jail due to being caught in possession of drugs and failing a drug test and being unhappy with anxiety and addiction.

Which nucleic acid carries genetic information from the cell nucleus to the
ribosomes?
*
DNA
messenger RNA
transfer RNA

Answers

the kidneys filter blood

messenger RNA (mRNA)
messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).

Write the names of the eight planets in our solar system in order starting with the planet who’s orbit is the most elliptical the planet who’s orbit is most round?

Answers

Answer:

Mercury, Mars, Saturn, Jupiter, Uranus, earth, Neptune, Venus

Explanation:

planets with orbits from most elliptical to least elliptical.

I deperately need help

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Answer:

Crohn's disease is a type of inflammatory bowel disease (IBD). It causes inflammation of your digestive tract, which can lead to abdominal pain, severe diarrhea, fatigue, weight loss, and malnutrition. Inflammation caused by Crohn's disease can involve different areas of the digestive tract in different people

Explanation:

The prominent indentation on the medial surface of the kidney is the:

Answers

Answer:

The hilus

Explanation:

Each kidney has a prominent medial indentation called the hilus

I don’t know how to do this. Help me please

Answers

here is how to do it! if you have any questions feel free to ask in the comments :)

What are three reasons the Fawnsfoot mussel is at risk??

Answers

Answer:

The human need for water is now the biggest danger to mussels. Habitat destruction, fragmentation from dams, and more recently an intense drought in the southern plains have all contributed to destruction of mussel beds.

Explanation:

An organism in its niche within an ecosystem is similar to?

A: a baseball player in his position on the baseball team.
B: the umpire not on a team.
C: the audience in the stands of a game.
D: the opposing team at a baseball game.

Answers

An organism in its niche within an ecosystem is similar to a baseball player in his position on the baseball team.

NICHE:

Niche in biology refers to the specific role or position of an organism in its ecosystem or habitat.

The niche of an organism is specific or particular to that organism and this enables it to adapt and survive in its environment.

This explanation shows that niche can be likened to a baseball player in his specific position on the baseball team.

Learn more about niche at: https://brainly.com/question/814740

Answer: A: a baseball player in his position on the baseball team.

Help please I’m doing the test. Am I right?

Answers

Answer: plants and plasma

true or false? local biogeochemical cycles are isolated within their particular ecosystem and all ions and molecules remain in that ecosystem permanently.

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false! hoping i helped! :) oh and also, HAPPY HOLIDAYSSSS!

Do you agree that farming is good for the society? Why?

Answers

Answer:

Yes ,I do agree that farming is good for society

Explanation:

Why do I belive this because farming is apart of the circle of life,We plant,it grows it feed animals and animals feed us. And it keeps going on and on again.

HELP!!! WILL GIVE MAX POINTS!! Doing a Lab Report on Natural Selection about beans. For example 20 dark red beans and 35 light red beans (kidney beans) Sample Response: When the volcano erupted, the dark red walking beans were easier to see. Thus, more dark red beans were eaten during days four, five, and six. If the pollution continued, there would be fewer and fewer dark red walking beans over time.

Questions being asked are:
1. What is the purpose of the lab?
2. What is your hypothesis for this experiment?
3. What methods are you using to test this hypothesis? (Outline the steps of the procedure in full sentences.)
4. 4. What graphs would clearly represent the trends in your data?
Your Student Guide includes information on which graphs to construct. Each graph should have the following items:
a. An appropriate title
b. Appropriate labels for each axis
c. An appropriate scale for each axis
d. The correct units for the data

Complete a rough sketch of each graph.

5. What do the data in your graphs tell you? (Explain in one or two sentences what trend is shown in each of your graphs.)
6. What does the data tell you about your hypothesis? (State how your hypothesis is either supported OR refuted by the data)
7. How does the data support your claim above? (Explain your statement above. Be sure to refer to specific pieces of data from your experiment that supports your argument)
8. 8. If you could repeat the experiment and make it better, what would you do differently and why?
There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.

Answers

Answer:

During the days four through six the population of the dark red beans changed. The change was negative meaning that there was less dark red beans that light red beans. This happened because it was harder to see the light red beans because the color of the air changed. In result of that the zocco ate mostly dark red beans.

Explanation:

Why is Sodium stored in oil?​

Answers

Sodium is kept immersed in kerosene because Sodium doesn't react with kerosene.

in pine trees Male pine cones contain:

Answers

Answer:

they male contain 2 seeds

Oxygen is formed from carbon dioxide in ____(1)____, while carbon dioxide is formed from oxygen in ____(2)____. A (1) photosynthesis, (2) cellular respiration B(1) cellular respiration, (2) photosynthesis C (1) fermentation, (2) anaerobic respiration D(1) aerobic respiration, (2) photosynthesis

Answers

Answer:

A

Explanation:

Oxygen is formed from carbon dioxide in ____(1)____, while carbon dioxide is formed from oxygen in ____(2)____.

A (1) photosynthesis, (2) cellular respiration

B(1) cellular respiration, (2) photosynthesis

C (1) fermentation, (2) anaerobic respiration

D(1) aerobic respiration, (2) photosynthesis

Drag each label to the correct location on the image.

The image below shows the process of DNA replication. Identify the components of the process.

Answers

Here’s your answer hope it helps

Answer:

Edmentum

Explanation:

Got it right

For example, when the intensity of light entering the eye increases, a ____________ reflex is triggered, and the circular muscles of the iris are stimulated to contract.

Answers

Answer:An increase in light intensity causes both pupils to contract (see iris) even if only one retina is directly stimulated. This is known as a consensual reflex. Conversely, a decrease in light intensity causes dilation of the pupils

Explanation:

What might explain the patterns of population density in northern Africa?

Answers

Answer:

Population density naturally varies a great deal within each country according to climatic conditions, topography, mineral deposits, rainfall, soil cultivation, etc

Identify and describe the layers of Earth’s interior.

Answers

The earth consist of 4 layers, the crust, the mantle, the outer core and inner core. These are the cross section of the earth.

Which of the following choice completes the diagram?
A. Credit card companies
B. Issuer banks
C. Banks
D. All of the choices

Answers

The answer is D . All of the choices

Plzzz help me I need help I gotta turn this in tomorrow

Answers

Answer: 4.

Explanation:

In the case of blood types, both alleles A and B may be expressed as the phenotype. This exemplifies:

Answers

Answer:

Codominance

Explanation:

Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.

these diverticula are lined with transitional cell epithelium.

Answers

Answer:

calyceal diverticula

Explanation:

there is no explanation

1. How do fossils form?

Answers

Explanation:

There is a LOOOONG process for this so here it is;  

First things first.The animal dies. Soft parts of the animal's body, including skin and muscles, start to rot away. Scavengers may come and eat some of the remains.  Before the body disappears completely, it is buried by sediment - usually mud, sand or silt. Often at this point only the bones and teeth remain.  Many more layers of sediment build up on top. This puts a lot of weight and pressure onto the layers below, squashing them. Eventually, they turn into sedimentary rock.  While this is happening, water seeps into the bones and teeth, turning them to stone as it leaves behind minerals.  This process can take thousands or even millions of years.

I hope this answer helped. Thank you!

agonists generally _______ activity at the synapse while antagonists generally ______ activity at the synapse.

Answers

Agonists activate the receptor thereby increasing activity at the synapse while antagonists generally prevent agonists from activating the receptors thereby decreasing activity at the synapse.

An agonist is the component that has the ability to increase the activity carried out by another substance.

The agonists work from their faculty of coupling to a cell-type receptor, in this way, they manage to generate a certain action in the cell.

The antagonists are the compounds that cause the opposite when they bind to the receptor, they cause a blockade by decreasing the activation of a synaptic receptor.

Therefore, we can conclude that agonists are compounds capable of increasing the action of synapse and blockers (antagonists) decrease activity at the synapse.

Learn more here: https://brainly.com/question/11985070

NEED HELP ASAP!!
Please no links!!

Answers

Answer:b) The air at high altitudes are less dense, so its harder to breathe.

Explanation:

AS altitude increases, the air pressure drops. This reduces the amount of gas molecules in the air so the air becomes less dense compared to air closer to sea level.

B because it would be harder to breathe

NO LINKS

In your own words, describe the base-pairing rules in any DNA molecule.

Answers

Answer:

adenine pairs with thymine

cytosine pairs with guanine

Explanation:

Which plate is the Eurasian plate?
A.B
B.C
C.A
D.D

Answers

Answer:

It's D        

Hope it helped

Answer: It's D

Explanation: Good Luck bud

*What is the relationship between DNA and gene expression? How do they depend on each other?*

Answers

Answer:

Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. When the information stored in our DNA? is converted into instructions for making proteins? or other molecules, it is called gene expression

Explanation:

DNA makes genetic expression. DNA is a structure located in the nucleus that makes people themselves. DNA is unique to everyone, no two people are exactly the same. The way the DNA is structured and what instructions it was given affect one's genetic makeup.

Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?

Answers

Answer: in the ovaries of female, and the testes of male animals!!

Explanation:

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