Fish and shellfish account for what percentage of total protein consumed by the human population?
a. 6
b. 16
c. 26
d. 36
e. 56
B
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In a hypothetical population of 1,000 people, there is a hypothetical trait called pink toe. People who are homozygous dominant have red toes, those who are homozygous recessive have white toes, and those who are heterozygous have pink
toes. If 400 people have red toes, the number of people with pink toes is _____________________. Fill in the blank(s) with the appropriate word(s).
Excitatory synapses cause hyperpolarization of post-synaptic cells.
a. true b. false
In cats, the gene for coat color is found on the X chromosome. Shown below is a mass of cells making up an early female cat embryo. The X chromosomes are shown in each cell; this embryo has one orange coat color allele (O) and one black coat color allele (B). Which of the following is ACCURATE about this embryo? 
A. Since it is heterozygous, it will give rise to a calico cat with two Barr bodies in each cell. B. It will give rise to an orange cat, as the paternal chromosomes carrying the black allele will be inactivated. C. It will give rise to a black cat, because black is dominant to orange. D. It will give rise to a calico cat. E. Since it is heterozygous, it will give rise to a cat with two Barr bodies in each cell.
A seed contains an embryo mutant for gibberellic acid (GA) receptors. What phenotype would you expect to result in the seedling?
A. No mutant phenotype until the plant is older. B. Malformed cotyledons due to defects in development. C. Yellow instead of green due to chloroplast failure. D. Poor growth due to unusable nutrient reserves.