A reproductive strategy in which one individual has both testes and ovaries is called
A. hermaphroditism.
B. sexual reproduction.
C. parthenogenesis.
D. fission.
Answer: A
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Individuals that have 2 alleles for most gene loci are best described as
A. haploid. B. diploid. C. dihybrid. D. homozygous. E. heterozygous.
Which of the following is not normally considered a pathogenic species of Clostridium?
A. C. perfringens B. C. tetani C. C. acetobutylicum D. C. botulinum
If you found a mutation, involving the loss of two bases, which was present in humans living on all four continents which you could test but was absent in close relatives such as gorillas and chimps, what would this imply?
A. Two bases were actually insertions in the nonhuman primates. B. Deletion arose before the branch between humans and nonhuman primates. C. Deletion arose in multiple nonhuman primates. D. Deletion arose at least six times in different human populations. E. Deletion arose after the branch between humans and nonhuman primates.
Suppose that your parents are both heterozygous for sickle cell disease. What is the probability that you will have the disorder?
a. 25%, whether or not you have siblings b. 50%, whether or not you have siblings c. 75%, whether or not you have siblings d. 100%, whether or not you have siblings