Adominant allele h reduces the number of body bristles in fruit flies, giving rise to e "hairless" phenotype. in the homozygous condition, his lethal. a dominant allele s has no effect on bristle number except in the presence of h, in which case e single s allele suppresses the hairless phenotype, thus restoring the bristles however, 5 is also lethal in homozygote. a. whet ratio of flies with normal bristles to heirless individuals would we find in the live progeny of e cross between two normal flies both carrying the h ellele in the suppressed condition? b. when the hairless progeny of the previous cross ere crossed with one of the parental normal flies from (a) (meaning a fly that carries h in the suppressed condition), what phenotypic ratio would you expect to find among their live progeny?
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Biology, 22.06.2019 08:50
Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells
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Biology, 22.06.2019 21:30
The picture below shows two galaxies. spiral galaxy and elliptical galaxy which of these statements best describes a similarity between the two galaxies? (2 points) both have elongated centers. both have centers shaped like bars. both change their shape from time to time. both are held together by gravitational forces.
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Biology, 23.06.2019 00:00
Darwin’s studies of finches on the galápagos islands suggest that the finches’ differences in beak structure were most likely directly due to:
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Adominant allele h reduces the number of body bristles in fruit flies, giving rise to e "hairless" p...
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