What is the relationship between genes, chromosomes and DNA?

A chromosome is composed of DNA molecules and each chromosome contains multiple genes

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A gene is composed of chromosomes and each gene contains many DNA molecules

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DNA is composed of chromosomes and each DNA molecule contains many genes

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A chromosome is composed of many genes and each DNA molecule is made up of many chromosomes

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A gene is composed of many DNA molecules which are composed of chromosomes

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Solution

The correct option is B A chromosome is composed of DNA molecules and each chromosome contains multiple genes
Chromosomes are the structures made up of chromatin. Chromatin is the threads of DNA that get condensed to form chromosomes.
Genes are the segments of DNA that code for proteins. Hence, each chromosome is made up of DNA and contains many genes because of segments of DNA.
So, the correct answer is A.

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Similar questions

IS IT TRUE THAT CHROMOSOME CONTAIN GENE and gene contains DNA?

Correct the following statements if there is any mistake.

(a) The four nitrogenous bases in the DNA are Guanine, Thiamine, Adrenaline and Cytosine.

(b) Genes are specific sequences of bases on a chromosome.

(d) Nucleosomes are groups of cysteine molecules surrounded by DNA strands.

(e) If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.

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