Which of the following statements accurately describes weight gain and genetics?
a. Obese people can change their genome and influence their epigenome.
b. Exercise has little, if any, effect on the genetic influence on weight gain.
c. Fraternal twins are more likely to weigh the same than are identical twins.
d. Adopted children tend to have body weights more like their biological parents than their adoptive parents.
e. Most cases of obesity stem from a single gene.
Answer: D
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Which food products in the United States are often genetically modified using genetic engineering?
A. wheat and seafood B. corn and soybeans C. milk and eggs D. apples and spinach
Fat-soluble vitamins share the following common feature:
A. They are absorbed in the large intestine. B. They travel from the small intestine directly into the bloodstream. C. They are transported as components of lipoproteins or bound to specific transport proteins. D. They are readily excreted rather than stored.
Under conditions of fasting, glycogen stores are depleted, and muscle is broken down to provide amino acids for energy and
A) glycolysis. B) glycogenolysis. C) post-absorption. D) gluconeogenesis.
What energy system is required for sustained activity, and why can the other energy systems not support sustained activity?
What will be an ideal response?