1. If a gene locus has exactly two alleles, and the frequency of one allele in t
ID: 141367 • Letter: 1
Question
1. If a gene locus has exactly two alleles, and the frequency of one allele in the population is 0.07, the frequency of the other would be_ 2. The species concept focuses on carefully measured physical traits to differentiate species True/False: Patterns of change seen in the fossil record almost always support the (traditional) gradualist model of speciation. 3. 4. Natural selection is only one of the forces causing evolution. What are the others, and why does selection often receive the most attention? 5. In terms of relative fitness, what conditions are likely to lead to fusion as the ultimate outcome in a hybrid zone?Explanation / Answer
Please find the answers below:
Answer 1: According to the Hardy-Weinberg law of populations, the sum of two allele frequencies add up to unity. Thus, the allele frequency of other allele will be 1-0.07 or 0.93.
Answer 2: Biological: The biological species concept relies upon observation and measurements of the physical characters of the individuals belonging to a species.
Answer 3: False: The pattern of changes in physical appearance of fossils can be influenced by external abiotic factors as well, hence complex observation is required to ascertain evolutionary changes.
Answer 4: Other than natural selection, genetic drift, bottle-neck effect and mutations also play critical role in evolution of species.
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