Respuesta :

Answer:

A

Explanation:

The portion which is not part of a chromosome is Choice A: Many strands of RNA.

A chromosome typically consists of proteins and DNA organized into genes. Each cell usually contains 23 pairs of chromosomes

  • Structurally, a chromosome is a long DNA molecule which carries part or all of the genetic material of an organism.

Chromosomes are made up of a DNA-protein complex called chromatin that is organized into subunits called nucleosomes.

  • Genes are made up of DNA. Each chromosome in a cell contains many genes.

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