The genotype of an individual with the dominant phenotype can be determined best by reproduction with

a. a homozygous recessive individual.
b. an individual with the dominant phenotype.
c. a heterozygote.
d. None of these are correct.


a. a homozygous recessive individual.

Biology & Microbiology

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A country's ecological footprint can be calculated by multiplying its population size by the footprint of each individual. Why are some ecologists concerned about the ecological footprint of a country like India

A. Its population is increasing. B. Its standard of living and land area are increasing. C. Its population and land area are increasing. D. Its standard of living is increasing. E. Both its population and standard of living are increasing.

Biology & Microbiology

Knockout experiments involving __________ genes in fruit flies (Drosophila melanogaster) revealed

local controls over gene expression. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

To be a part of the biosphere any particular region

must a. be close to the earth’s surface. b. include sources of water. c. support life. d. include oxygen. e. be exposed to sunlight.

Biology & Microbiology

If the left semilunar valve were blocked, where would blood accumulate?

A. right atrium B. left ventricle C. left atrium D. lungs E. right ventricle

Biology & Microbiology