What is the relationship between the narrow-sense heritability (h2 ) index and the impact of selection?
What will be an ideal response?
A relatively high h2 value is a prediction of a significant impact that selection may have in altering an initial population.
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If a normal egg is fertilized by a sperm which
has an extra chromosome, what will be the chromosomal condition of the zygote?
a. three copies of the affected chromosome and two of all others b. three copies of all chromosomes c. four copies of the affected chromosome and two of all others d. one copy of the affected chromosome and two of all others e. two copies of all of the chromosomes
Birds belong to a related group of vertebrates that includes all of the
A) ray-finned fishes. B) amphibians. C) lobe-finned fishes. D) reptiles. E) mammals.
Microbes are not responsible for:
A. Synthesis of acetone and alcohol B. Synthesis of vitamins C. Oxygen generation by photosynthesis D. Breaking down wastes E. Production of antibodies
In which of the following reactions is reduction taking place?
A) FADH ? FAD+ B) NADH ? NAD+ C) NAD+ ? NADH