Suppose that, with regard to a particular genetic locus with two alleles, A and a, we know that 60% of the alleles in the gene pool of a particular large population are A. Suppose further that we observe this population for five generations, during which we know that no mutation, selection, or migration has occurred. After this period, the frequency of the a allele is expected to be _____.
A) 0.6
B) 0.4
C) 0.25
D) 0.16
E) 0.5
Answer: B) 0.4
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Given a sequencing reaction length of approximately 500 successive nucleotides, what is the absolute minimum number of sequencing reactions needed to determine the complete human genome, excluding overlap and redundancy?
A. 3.1 billion B. 6200 C. 12.4 million D. 6.2 million Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about genome size? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
According to the example of the genotyping microarray depicted in Figure 15.8, which one of the following genotypes will fluoresce at the most sites?
A. the homozygous C-G/C-G genotype B. the homozygous T-A/T-A genotype C. the heterozygous C-G/T-A genotype D. None of the answer options is correct; they all fluoresce at an equal number of sites. E. It is impossible to determine with the information provided.
Which pesticide can trigger rashes, hives, headaches and asthma?
a. atrazine b. growth hormone c. anthocyanin d. DDT
e. sterolsWhich one of the following plays a major role in gas exchange in a mammalian embryo?
A) amnion B) hypoblast C) chorion D) trophoblast E) yolk sac