Which of the following is required of an RNA virus to infect and lyse a cell?
a) transcription
b) translation
c) transmutation
d) transcription and translation
e) transcription and transmutation
Answer: b) translation
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A homozygous milk chocolate Easter bunny is crossed with a homozygous dark chocolate Easter bunny. Assuming dark chocolate is dominant over milk chocolate and the traits segregate according to Mendelian genetics, which traits will be observable in the offspring?
A. All milk B. All dark C. 3 milk to 1 dark D. 3 dark to 1 milk
The most parsimonious inference about the evolution of parental care behavior in crocodilians and
birds is
a. it evolved once in the common ancestor of the two groups. d. it is a learned behavior. b. the derived character state is an apomorphy. e. parental care arose due to coevolution. c. it evolved numerous times within each lineage.
VNTR analysis involves ________
A) cutting DNA with restriction enzyme and analyzing the banding pattern of fragments B) PCR amplification of specific genes C) analyzing specific loci for 2 base repeating units usually less than 100 bp in size D) analyzing specific loci for 2 to 4 bp repeating units E) None of these choices
Male mallard ducks have had emerald green head feathers and wings with metallic blue patches for hundreds of years, whereas females have been drab, brown-feathered ducks. This phenotypic situation suggests that mallards may be an example of ____.
A. directional selection B. Polyploidy C. allopatric speciation D. disruptive selection E. sexual selection