Which allele combination represents a homozygous dominant individual?
A. aa
B. AA
C. Aa
D. None of these are homozygous dominant individuals.
Answer: B
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A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis. She sees 40 chromosomes, which is completely normal for mice. Based on this information, what is the haploid number of chromosomes for mice?
A. 10 B. 20 C. 40 D. 80 E. It cannot be determined from the information provided 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 know about diploid cells? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
You want to identify Mycobacterium tuberculosis in a patient sputum sample. Which procedure would be most useful in this case?
A. Polymerase chain reaction B. Whole genome sequencing C. Microarray analysis D. DNA probe analysis
How many oxidation reactions occur during the Citric acid cycle?
A. 2 B. 9 C. 6 D. 4 E. 1
You are studying the feeding habits of a group of four closely related bird species. You observe that all four species feed on insects. However, you notice that the species do not feed at the same time of day: one species feeds most actively at dawn, another during the middle of the day, another at dusk, and the last species feeds at night. What term would you use to describe this behavior?
A. interference competition B. character displacement C. exploitation competition D. resource partitioning E. competitive exclusion