A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). For the following questions, assume that the population fits the parameters of the Hardy-Weinburg law. What is the frequency of the recessive allele?
a. ?0.75
b. 0.75
c. ?0.50
d. ?0.25
e. 0.25
Ans: d. ?0.25
Biology & Microbiology
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Biology & Microbiology
In both prokaryotes and eukaryotes the start codon (or initiator codon) is ____, which codes for the
amino acid ____.
a. UGA; proline b. UUU; phenylalanine c. AAA; lysine d. ACG; threonine e. AUG; methionine
Biology & Microbiology
RNA cannot be cloned directly. ________, a viral enzyme, is used to convert single-stranded RNA
into ___________ for cloning. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Dividing adult eukaryotic cells spend most of their time in which of the following?
A) metaphase B) prophase C) telophase D) interphase E) anaphase
Biology & Microbiology