Assume that in guinea pigs, dark brown fur (B) is dominant to black fur (b). If you mate a homozygous black guinea pig with a heterozygous brown guinea pig, what proportion of the progeny will be black?
A) none
B) 1/4
C) 1/2
D) 3/4
E) all
C) 1/2
Biology & Microbiology
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Flukes are most closely related to _____
a. tapeworms c. arthropods b. roundworms d. echinoderms
Biology & Microbiology
Proteins required for the spindles are synthesized in the
A. G2 stage. B. S stage. C. G0 stage. D. G1 stage.
Biology & Microbiology
Which of the following reasons explain why bacteria can continually divide?
A. Because they are so simple. B. Because their DNA is circular so it never shortens after replication. C. Because DNA replication is much quicker in bacteria than in eukaryotes. D. Because they have plasmids. E. Because they only have one chromosome.
Biology & Microbiology
Plant cell growth is confined to:
A. flowers. B. meristems. C. within the cell walls. D. photosynthetically active tissues.
Biology & Microbiology