Question

use the text to compare and contrast rna and dna.
when we think of genetics, dna typically gets all the credit. most people know that dna holds the genetic information used in the development and functioning of living organisms. but did you know that rna, like dna, also holds this information? dna is so critical in the process of making new cells that it never leaves the nucleus of the cell. instead, it makes a copy of itself—rna—which leaves the nucleus to do important work like helping create proteins for the body. think of dna, which is composed of a double helix, as a long - term storage facility for genetic information. rna, on the other hand, is composed of a single helix, and it can be thought of as a short - lived memo about a small piece of the genetic code.

Explanation:

• For "Holds genetic information": The text states "DNA typically gets all the credit... But did you know that RNA, like DNA, also holds this information?". So both hold genetic information.
• For "Never leaves the nucleus": The text says "DNA is so critical... that it never leaves the nucleus... RNA... leaves the nucleus". So only DNA never leaves the nucleus.
• For "Is a single helix": The text mentions "DNA... double helix... RNA... single helix". So only RNA is a single helix.

Answer:

• Holds genetic information: RNA (✔), DNA (✔)
• Never leaves the nucleus: RNA (✖), DNA (✔)
• Is a single helix: RNA (✔), DNA (✖)