If the frequency of an autosomal recessive trait in humans is 1 out of 100 births, what would be the expected frequency of heterozygote carriers for the trait if we assume that the gene is in Hardy-Weinberg equilibrium?
A. 0.10
B. 0.81
C. 0.18
D. 0.01
E. 0.90
Answer: C
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Refer to the paragraph on the Venter et al. paper and the table above. How do you think expected genes were placed into the categories shown in the preceding table?
A) by searching for open reading frames (ORFs), especially those with translation start and stop sites B) by searching for matches, especially of the predicted gene products, with previously identified gene products of known function C) by expressing the cloned genes in E. coli and then running biochemical analyses of the products D) by searching for similarity between ORFs and those in existing databases
The carrying capacity of an area is
A. the optimum number of different species that can grow and reproduce there. B. the optimum number of individuals of a species that can survive and reproduce. C. the minimum number of individuals of a species that can survive and reproduce. D. the number of individuals of a species found in an area.
The flexible tube that connects the larynx to the bronchi is the _______.
a) trachea b) esophagus c) colon d) bonchiole
Match the microscopy vocabulary word with it's definition.
Working distance A) Focus is maintained when the magnification is changed B) Ability to distinguish two objects as separate C) Area observed through the ocular lens D) Distance between the specimen and the objective lens