Biology, 08.04.2021 19:50 kyronthomas52
The fruit fly Drosophila melanogaster has an allele that confers resistance to DDT and similar insecticides. Laboratory strains of D. melanogaster have been established from flies collected in the wild in the 1930s (before the widespread use of insecticides) and the 1960s (after 20 years of DDT use). Lab strains established in the 1930s have no alleles for DDT resistance. In lab strains established in the 1960s, the frequency of the DDT-resistance allele is 37%. Which statement is correct
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Biology, 21.06.2019 16:30
Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.
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Biology, 22.06.2019 21:30
How would this hypothesis different from the scientific law a. increases gene flow b. eliminates fixed alleles c. allows divergence to occur d. stops adaptive radiation
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The fruit fly Drosophila melanogaster has an allele that confers resistance to DDT and similar insec...
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