Intron frequency varies considerably among eukaryotes. Provide a general comparison of intron frequencies in yeast and humans. What about intron size?
What will be an ideal response?
The entire yeast genome has only about 240 introns, whereas some single genes in humans contain more than 100 introns. In general, smaller genomes have smaller intron size in addition to lower intron number.
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Many antibiotics kill bacteria because they hinder translation by prokaryotic _____
A. ribosomes B. capsules C. cytoskeleton D. cytoplasm E. nucleoids
Lancelets are primarily non-motile, and feed by filtering food out of the water in which they live, using a combination of cilia and oral tentacles. During this process, the lancelet collects filtered water, which must be expelled from its body. Where does filtered water exit the lancelet?
a. pharyngeal slits b. anus c. atriopore d. mouth
Hunters waiting to kill "prize bucks" over smaller white-tailed deer can possibly change allele frequencies of the deer population. If smaller deer are speared this could lead to
A. no adverse effects on the white-tailed deer species. B. a founder effect, from hunting, will allow small groups of larger white-tailed deer to establish habitats away from human populations. C. directional selection for smaller white-tailed deer will result in fewer "prize bucks." D. natural selection of deer with large antlers. E. a bottleneck effect, from hunting, that will cause extinction of the white-tailed deer.
In the scientific name, Pan paniscus, Pan represents the name of the ____ while paniscus represents the name of the
____.
a. family; species b. family; genus c. genus; species d. species; genus e. genus; family