Answered

2. A chemical substance whose molecules, arranged in varying patterns, are the building blocks of genes:

A. Chromosome
B. DNA
C. Recessive gene
D. RNA



Answer :

GinnyAnswer

Final answer:

Genes are composed of DNA arranged on chromosomes, containing information for traits.


Explanation:

Genes are the basic physical units of heredity, composed of DNA arranged on chromosomes. Each chromosome contains numerous genes which hold the information needed to specify traits.


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