You perform an in situ hybridization on drosophila melanogaster embryos. you apply a probe labeled with a fluorescent stain that is complementary to mrna transcripts of the gene hunchback. in early stages of embryogenesis you observe fluorescence for the entire anterior half of the embryo only. in embryos at a later stage of development you see the same pattern in the anterior, and also a stripe of fluorescence in the posterior half. what can you conclude about the expression of hunchback from this? group of answer choices hunchback moves from the anterior of the embryo to the posterior during development. hunchback expression is more important in the anterior than in the posterior. hunchback is never expressed in the posterior half of the embryo. hunchback is first expressed in the anterior of the embryo and later in a portion of the posterior. hunchback has been "knocked out" in some portions of the embryo.
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Biology, 22.06.2019 00:10, bobtothemaxthe1st
Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.
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Biology, 22.06.2019 04:00, tejasheree
Asap indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. alleles: a=agouti, c=chinchilla, a=albino, a is dominant over c and a, c is dominant over a agouti x chinchilla a) 1/2 chinchilla, 1/2 agouti b) 3/4 chinchilla, 1/4 agouti c) all agouti
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Biology, 22.06.2019 13:00, cjstablet04
Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies
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You perform an in situ hybridization on drosophila melanogaster embryos. you apply a probe labeled w...
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