Biology, 30.10.2019 04:31 amorosoavap5cejz
Suppose that gene x is induced in e. coli cells when they are treated with high levels of ethanol. a mutation in region 1 in the upstream region of gene x results in high-level expression under basal conditions, and a mutation in region 2 results in an uninducible gene. what would you expect from a strain in which both regions 1 and 2 are mutated?
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If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.
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Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.
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The function of the excretory system is to control homeostasis and
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Suppose that gene x is induced in e. coli cells when they are treated with high levels of ethanol. a...
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