The genes involved in pattern formation and organization of body parts are called homeobox genes, which are a large family of similar genes.
The h<span>omeobox genes direct the formation of many body structures during early development of the embryo. </span>
Boys shoulders broaden and voice deepen, Girls start having menstrual periods and develop breast. <span />
The answer is d. chromosomes help an organism produce usable energy
Erosion breaks rocks apart.
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