Biology, 04.12.2019 00:31 pxrnstar4613
Consider the following experiment. first, large populations of two mutant strains of escherichia coli are mixed, each requiring a different, single amino acid. after plating them onto a minimal medium, 45 colonies grew. which of the following may explain this result?
a) the colonies may be due to back mutation (reversion).
b) the colonies may be due to recombination.
c) either a or b is possible.
d) neither a nor b is possible.
Answers: 2
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Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?
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Consider the following experiment. first, large populations of two mutant strains of escherichia col...
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