What are the odds of a given cell division producing a product with a mutation in a region that
produces a protein product? What will be an ideal response?
There are 7 x 109 base pairs, and only 175 are changed on a given cell division. In addition, only 3%
of the chromosome length encodes for a protein product. Therefore, only a miniscule 1.3 x 10-7% of
the time will a mutation impact a protein producing region of the genome.
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How many proteins appear to be related to the differences in shell color?
a. 1 b. 2 c. 3 d. 4
Which of the following enzymes digests fats?
a. aminopeptidase b. disaccharidases c. amylase d. lipase e. trypsin
Of the four main tissue types, the type known as ________ covers body surfaces and lines body cavities and organs
Fill in the blank(s) with correct word
In which of the following situations would speciation be most likely to occur?
A) A population of juniper shrubs is split in two by a canyon. Every year, strong winds carry a small amount of the shrubs' pollen across the canyon. B) A Japanese mollusk species whose larvae are often carried from port to port in ship bilge (waste) water now flourishes in San Francisco Bay, a busy commercial port. C) Bighorn sheep occupy mountains from Canada to Death Valley in Southern California, interbreeding all the way. The populations at the two ends of the range live in very different environments. D) Seven monkeys escape from an enclosure. To everyone's surprise, they establish a small but viable population, coexisting successfully with humans in a partly suburban environment very different from their native African habitat.