Which one of the following statements describe the relationship between genes,chormosomes and DNA?

A genes,the basic unit of heredity,are located on chromosomes,which consist of strands of DNA
B genes are composed of chromosomes and Dna
C chromosomes,tha basic unit of heredity,direct the genes and the DNA
D DNA houses both genes and chromosomes in its rod-shaped structures,
Is it A OR D????

Vedrana or 888 -- please do not keep posting the same question. When a volunteer expert sees your question, he will probably post your answer.

ok,thank you

The correct answer is A: "Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA."

To determine the answer, let's break down the relationship between genes, chromosomes, and DNA:

1. Genes: Genes are the basic unit of heredity that carry the instructions for traits from parents to offspring.

2. Chromosomes: Chromosomes are thread-like structures found in the nucleus of cells. They contain the genes and are composed of DNA.

3. DNA: DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all living organisms. It is a double-stranded helix structure made up of nucleotides, which are the building blocks of DNA.

Now, let's look at statement A: "Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA." This statement accurately describes the relationship between genes, chromosomes, and DNA. Genes are located on chromosomes, and chromosomes are made up of DNA.

On the other hand, statement D: "DNA houses both genes and chromosomes in its rod-shaped structures" is not correct. While DNA does store genetic information, it does not physically house chromosomes. Chromosomes are structures on their own, and they contain genes.

Therefore, the correct answer is A.