A scientist carried out an experiment to follow the movement of carbon atoms within animal cells. To do this, the scientist added glucose with radioactively labeled carbon atoms to a culture of cells growing in a Petri dish.

After a certain amount of time had passed, the scientist tested parts of cells for radioactivity. Radioactivity was detected in various biomolecules, including DNA.

Which of the following statements best explains why radioactivity was detected in the DNA?
Choose 1 answer:

(Choice A)
The DNA was in close proximity to the radioactive glucose during its formation.

(Choice B)
Carbon atoms that were once in the radioactively labeled glucose were used to form DNA.

(Choice C)
The DNA was made up of radioactively labeled glucose subunits.

Question

Seudónimo Seudónimo

24-12-2021
Biology

contestada

A scientist carried out an experiment to follow the movement of carbon atoms within animal cells. To do this, the scientist added glucose with radioactively labeled carbon atoms to a culture of cells growing in a Petri dish.

After a certain amount of time had passed, the scientist tested parts of cells for radioactivity. Radioactivity was detected in various biomolecules, including DNA.

Which of the following statements best explains why radioactivity was detected in the DNA?
Choose 1 answer:

(Choice A)
The DNA was in close proximity to the radioactive glucose during its formation.

(Choice B)
Carbon atoms that were once in the radioactively labeled glucose were used to form DNA.

(Choice C)
The DNA was made up of radioactively labeled glucose subunits.

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aswans aswans · Answer 1 · 2022-07-06T17:26:26+02:00

Carbon atoms that were once in the radioactively labeled glucose were used to form DNA - this statement best explains why radioactivity was detected in the DNA.

What is radioactivity in DNA?

Radioactivity is known to induce tumors, chromosome lesions, and minisatellite length mutations.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions.

The radiation could damage the cell’s DNA, but the DNA repairs itself. The radiation could prevent the DNA from replicating correctly. The radiation could damage the DNA so badly that the cell dies.

The correct answer is option B.

Learn more about radioactivity, refer:

https://brainly.com/question/1228601

#SPJ2

seokjinnie777 seokjinnie777 · Answer 2 · 2022-08-19T19:38:37+02:00

seokjinnie777 seokjinnie777

19-08-2022

Answer:

the answer is b - carbon atoms that were once in the radioactively labeled glucose were used to form DNA

hope this helps! <3

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