GROWTH DEVELOPMENT CHILD
FORMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA
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chromosome
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platelet
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allele
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Detailed explanation-1: -About 50 genes and regions of the genome have been associated with height to date. These begin to explain the biological basis of height, its links to disease and aid our understanding of the evolution of human height.
Detailed explanation-2: -Because height is determined by multiple gene variants (an inheritance pattern called polygenic inheritance), it is difficult to accurately predict how tall a child will be.
Detailed explanation-3: -Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin color across people. Skin color is also a polygenic trait, as are hair and eye color.
Detailed explanation-4: -Whether you’re tall or short doesn’t depend on a single gene. New research shows that thousands of genes determine a person’s height. For the world’s largest study into the genetics behind human height, researchers analyzed more than a quarter of a million samples to find that hundreds of new genes that play a role.