Which best describes the relationship between dna, genes, and chromosomes?

a) dna are segments of genes which form tight coils called chromosomes.
b) genes are segments of dna which form tight coils called chromosomes.
c) chromosomes are segments of dna which form tight coils called genes.
d) genes are segments of chromosomes which form tight coils called dna.

The correct answer is B.

The DNA molecule is made out of a sequence of 4 different nucleotides. Parts of the sequence that can be used to make RNA and later proteins are called GENES.

So, different genes (sequences of nucleotides) form the DNA molecule. DNA molecules bind with proteins called histones in the nucleus and form tight coils, called chromosomes.

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your answer should be c) enjoy!