Which of these factors would be involved in maintaining a constant gene frequency in a population? 

A. dominant alleles
B. lack of migration
C. high rate of mutation
D. a caste system that determines whom one can marry


B. lack of migration

Biology & Microbiology

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Inbreeding reduces which of the following variances to near zero?

A. Genetic variance B. Environmental variance C. Both variances D. Neither variance

Biology & Microbiology

Explain why X-ray diffraction was important in the study of DNA structure and describe the procedure used in X-ray diffraction

What will be an ideal response?

Biology & Microbiology

The Arctic tern makes an annual migration of up to _______

a. 700,000 km b. 70,000 km c. 7,000 km d. 700 km e. 70 lm

Biology & Microbiology

Which of the following are examples of macroevolution?

A. Mass extinctions that wipe 50% or more of living species B. The evolution of novel biological features C. The creation of new species D. All of the above are examples of macroevolution

Biology & Microbiology