Information on protein is provided by which section of DNA?

The correct option is A

Gene

The correct option is A.

Explanation of correct option:

1. A gene is a single unit of heredity.
2. It is a sequence of nucleotides that encode the production of a gene product, a protein, or RNA.

Explanation of incorrect options:

Option B:

The nucleus is a membranous organelle that contains chromosomes.

Option C:

A thread-like structure present within the nucleus of plant and animal cells is known as a chromosome. Each chromosome is made of histone proteins and a molecule of deoxyribonucleic acid (DNA).

Option D:

A specific characteristic of an individual that is carried genetically is known as a trait.

Final answer: Information on protein is provided by a gene.