A pollen grain in a plant represents the ________
A. male gametophyte
B. female gametophyte
C. male sporophyte
D. female sporophyte
A
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Which molecular method allows for the detection of a specific organism within a diverse microbial community?
A) fluorescent DNA staining using DAPI B) viability staining C) enrichment techniques D) fluorescent in situ hybridization
Horses typically can live around 30 years and a
healthy mare can produce one foal per year. Horses are __ species.
a. opportunistic b. type I c. K-selected d. r-selected e. more than one of these types of
Damage to which of the following brain structures is most likely to be fatal?
A) caudate nuclei B) cerebellum C) brain stem D) cerebrum
Which of the following types of mutation would convert a proto-oncogene into an oncogene?
A) a mutation that blocks transcription of the proto-oncogene B) a mutation that creates an unstable proto-oncogene mRNA C) a mutation that greatly increases the amount of the proto-oncogene protein D) a deletion of most of the proto-oncogene coding sequence