Which of the following segments of DNA would likely have the fastest molecular clock rate?
a. Noncoding DNA that has a regulatory function
b. A pseudogene (a gene that has lost sequences needed for expression)
c. A gene for an essential enzyme
d. A gene for rRNA
e. A gene for a cytochrome involved in cellular respiration
Answer: b. A pseudogene (a gene that has lost sequences needed for expression)
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Antimicrobial resistance resulting from the normal genetic, structural, or physiologic state of a microorganism is referred to as ________ resistance
a. intrinsic b. inherent c. microorganism-mediated d. clinical
Before examining a fungal cell under a microscope, you are told that it is dikaryotic. Given that, you should expect the
cell to have two ____.
a. complete sets of chromosomes b. diploid nuclei c. hyphae d. haploid nuclei e. diploid nuclei and two hyphae
The presence of both male and female reproductive tissue in the same individual is termed ____
a. parthenogenesis b. hermaphroditism c. oviparity d. viviparity e. ovoviparity
Syndrome means
a. a chromosome disorder. b. a simple genetic disease. c. a set of symptoms that occur together. d. an incurable disease. e. a rare inborn defect.