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Question

A sequential expression of a set of human genes occurs when a steroid molecule binds to the


A

tRNA

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B

mRNA

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C

DNA sequence

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D

Ribosome

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Solution

The correct option is C

DNA sequence


The correct option is C.

Explanation for the correct option:

  1. Steroid molecules are chemical messengers that aid in the binding and interaction of DNA molecules inside the nucleus.
  2. Since sex hormones can be either male or female, as is well known, steroid hormones act on a certain DNA sequence.
  3. Therefore, when the steroid hormone works on the DNA sequence, it starts the transcription process and aids in the translation of the mRNA produced by the transcription process.

Final answer: A sequential expression of a set of human genes occurs when a steroid molecule binds to the DNA sequence.


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