Human DNA and chimpanzee DNA differ by
A) about 1%.
B) about 3%.
C) more than 10%.
D) the same amount that human DNA differs from orangutan DNA.
Answer: A
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Five new individuals were added to this small population in 1986 and ten more were added between 1990-1994. According to the figure above, what occurred in this population after these additions?
A) The population increased exponentially. B) The population increased in overall numbers. C) The population growth rate increased. D) The population continued to decline
Which statement about mutations is true?
a. Beneficial mutations tend to spread through selection. b. The evolutionary effect of mutation is typically large. c. Harmful mutation are removed through genetic drift. d. Both harmful and beneficial mutations spread quickly.
When a haploid "plus" mating type fungal cell fuses with a haploid "minus" mating type cell, this can lead to a single cell containing two haploid nuclei called a
a. spore. b. dikaryon. c. fruiting body. d. haploid-diploid. e. fusion product.
According to Figure 46-3, which of the following statements is false?
a. The of the air in the alveoli must be greater than 100 mm Hg. b. The in the tissues must be less than 100 mm Hg. c. The of the air in the alveoli must be less than 40 mm Hg. d. The in the tissues must be greater than 40 mm Hg. e. The in the tissues must be equal to the in the tissues.