Which is the principle waste product if the body has excess amino acids?
a. Ammonia
b. Nitrogen
c. Urea
d. Carbon dioxide
c. Urea
Urea is the principle waste product if the body has excess amino acids.
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Explain how to determine if a nondisjunction occurred during meiosis I or meiosis II and what the genetic consequences are for the resulting fertilized gametes
What will be an ideal response?
In a human population with a high proportion of prereproductive individuals, the population will:a
continue to increase even if the fertility rate is at replacement levels. b. decline even if the fertility rate is at replacement levels. c. increase only if the fertility rate is above replacement levels. d. decline only if the replacement level fertility rate changes. e. reach ZPG sooner than with a low proportion of prereproductive individuals.
Two characters that appear in a 9:3:3:1 ratio in the F2 generation should have which of the following properties?
A) Each of the traits is controlled by single genes. B) The genes controlling the characters obey the law of independent assortment. C) Each of the genes controlling the characters has two alleles. D) Four genes are involved. E) Sixteen different phenotypes are possible.
According to the graph, which is likely the factor limiting reproductive output of a female fruit fly?
a) availability of male mates b) time to mate with multiple males c) production of eggs d) eggs are much smaller and delicate than sperm e) males typically choose only one female