STANDARD Zoology DNA Structure MCQ Question with Solution

In DNA molecule, which of the following base pair is present

A

Cytosine and adenine

B

Adenine and thymine

C

Adenine and guanine

D

Cytosine and thymine

Option B

In DNA molecule the base pairs present are Adenine and thymine with a double bond and Guanine and cytosine with a triple bond.

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Escherichia coli has _______, and haploid content of human DNA is _______

Assertion (A): DNA is the predominant genetic material in most organisms. | Reason (R): DNA is more chemically and structurally stable than RNA.

What is the function of tRNA in the process of translation?

Assertion (A): Euchromatin is transcriptionally active chromatin. | Reason (R): Euchromatin is more densely packed and stains dark.