Question

The simplest definition of a gene in eukaryotes is --- A unit of DNA that has information to mainly specify the synthesis of:

• A. Single polypeptide chain and mRNA only
• B. Many polypeptide chains and mRNA only
• C. Single polypeptide chain and functional RNA only
• D. Many polypeptide chains and functional RNA only

Hint:

A eukaryotic gene typically codes for either a single polypeptide or a functional RNA, such as tRNA or rRNA, as its primary product.

Answer 1

The Correct Option is C

In eukaryotes, a gene is a unit of DNA that codes for a functional product, either a single polypeptide chain (via mRNA) or a functional RNA (e.g., tRNA, rRNA). The simplest definition includes both possibilities, as genes can produce either a polypeptide or functional RNA, but not necessarily many polypeptide chains or mRNA alone.