In Labrador retrievers, coat color is controlled by gene interaction in which homozygosity for a recessive allele can mask the phenotypic expression of a second gene
This genetic interaction is known as ________ and has a characteristic ________ ratio. Fill in the blank(s) with correct word
recessive epistasis; 9:3:4
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Which one of the following pairs of people has the exact same genome?
A. father and son B. mother and daughter C. identical twins D. fraternal twins E. None of the pairs listed; every genome is unique.
Cells that ingest and destroy bacteria and other foreign particles are called:
a. phagocytes. b. lymphocytes. c. goblet cells. d. ciliated cells.
Why is surface area to volume ratio important
for all cells?
a. a cell must be small enough to absorb small molecules and atoms b. if a cell has too small a surface area, the surface to volume ratio will be too large c. if a cell has too large a surface area to volume ratio, the plasma membrane is not sufficient to deal with the increased amount of cytoplasm d. surface area to volume ratios are only important for small cells, like bacteria e. more than one of these is correct
In eukaryotes, what modification occurs to the
mRNA transcript?
a. the non-coding segments are removed b. the thymines are removed and replaced with uracils c. cytosines are added to the ends of the transcripts d. coding segments are methylated e. more than one of these modifications occur