Biology, 05.05.2020 19:30, Thelazysandwich
7. Pyrethrums are chemicals used to kill insects. In bed bugs, the mutant-type allele, r, confers resistance, but only in homozygous individuals. Assume the populations are in Hardy-Weinberg proportions before pyrethrum is sprayed and that there are two alleles at this gene. a. In 1955, pyrethrum was sprayed and killed 99% of the bed bug population. What were the genotype frequencies and allele frequencies in 1955 immediately before the spraying occurred
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Biology, 22.06.2019 07:00, victorialeverp714lg
According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?
Answers: 2
Biology, 22.06.2019 07:00, thomasalmo2014
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
Biology, 22.06.2019 17:20, Ashtree519
Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.
Answers: 1
7. Pyrethrums are chemicals used to kill insects. In bed bugs, the mutant-type allele, r, confers re...
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