For the relative proportions of alleles and genotypes in successive generations to stay the same, which condition must
be met for the population?
a. There can be no natural selection.
b. A population must not be very large.
c. There can only be mating between relatives.
d. A population can only have some migration.
e. A population can have only occasional matings.
a
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Molecular studies place ____ as the sister clade of vascular plants
a. ferns b. mosses c. liverworts d. hornworts e. stone worts
The genetic code includes
A) 3 start codons and 1 stop codon. B) 2 start codons and 2 stop codons. C) 1 start codon and 3 stop codons. D) 0 start codons and 4 stop codons.
Hematopoietic stem cells
A) are the precursor of new blood cells. B) are maintained in the bone marrow. C) proliferate and differentiate into red blood cells, white blood cells, and platelets. D) are all of the above.
Potassium-40 is useful inn determining the age of a fossil in samples
A. 300,000 years of age and older B. Less than 25,000 years of age C. Aged between 50,000 and 100,000 years of age D. Aged between 100,000 years and 250,000 years E. Of 40,000 to 50,000 years of age