During his experiments with pea plants, Mendel referred to the trait that was expressed in the F1 or first filial generation as
A. recessive.
B. dominant.
C. codominant.
D. independent.
E. homozygous.
B. dominant.
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The final step in the scientific method for a
scientist is
a. devising an experiment b. collecting data c. making observations d. report his or her results e. researching the literature for similar investigations
After a shipwreck you are alone on a deserted island with a pair of pigs and a large supply of corn
Your best strategy would be to a. feed the corn to the pigs and feed upon their offspring. b. kill the pigs immediately and then eat the corn. c. share the corn with the pigs, and then eat the pigs when the corn is gone. d. plant all the corn, and then feed it to the pigs. e. eat the corn alternating with the pork.
What is a ribozyme?
A. an RNA with enzymatic activity B. an enzyme that synthesizes RNA primers during DNA replication C. an enzyme that uses RNA as a substrate D. an enzyme that catalyzes the association between the large and small ribosomal subunits E. an enzyme that synthesizes RNA as part of the transcription process
The random change in frequency of a genetic variant in a population is called
a. negative selection. b. gene conversion bias. c. purifying selection. d. genetic drift. e. positive selection.