GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a person’s height
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where a person lives
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a person’s ability to write
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a person learning a new language
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Detailed explanation-1: -Scientists estimate that about 80 percent of an individual’s height is determined by the DNA sequence variations they have inherited, but which genes these changes are in and what they do to affect height are only partially understood.
Detailed explanation-2: -Polygenic Trait A polygenic trait is a characteristic, such as height or skin color, that is influenced by two or more genes. Because multiple genes are involved, polygenic traits do not follow the patterns of Mendelian inheritance.
Detailed explanation-3: -Your DNA accounts for around 80% of your height. In fact, scientists have identified over 700 unique genetic variants that are involved in determining height. Several hormones also influence growth and affect your height, including thyroid hormones, growth hormones, and sex hormones, such as testosterone and estrogen.