Reference no: EM1386551
21) Eye color is expressed by two genes- A and B. Dark brown eye color, A, is dominant over lighter brown a. Eye pigment, B, is dominant over lack of eye pigment, b. The B gene is epistatic to the A gene. The eye color spectrum goes from dark brown (AABB), to lighter brown (AaBb), to green (Aabb), to light blue (aabb). With this information, if the parents have medium brown (AABb) and light brown (AaBb) eyes, what is the probability that their child will have dark brown eyes?
a. 1:6
b. 1:8
c. 1:4
d. None of the above
22) What is the probability that the child will have green eyes?
a. 1:8
b. 1:6
c. 1:2
d. None of the above
23) What is the probability that the child will have medium to light brown eyes?
a. 1:4
b. 3:4
c. 1:2
d. None of the above
24) Autosomal means that the gene is found on
a. the X chromosomes
b. the Y chromosome
c. neither on the X nor the Y
d. either the X or the Y chromosome
25) The population of the City of Alexandria was 139,966 in 2012. The total land area is 40km2. In 2013 there were 6,245 babies born and 2,439 elderly people died. What is the per capita death rate for Alexandria?
a. 0.0017
b. 0.045
c. 0.017
d. 57.38
26) What is the population density for Alexandria?
a. 3,499.15 people per km2
b. 2.86 people per km2
c. 28.6 people per km2
d. 350 people per km2
27)You observe the following outside your window: A grasshopper is munching away on a leaf when a hawk swoops down and eats the grasshopper. What is the grasshopper in this situation?
a. secondary consumer
b. prey
c. herbivore
d. producer
e. both b and c
28)What is the hawk?
a. secondary consumer
b. prey
c. herbivore
d. producer
e. tertiary consumer
29)A group of scientists wanted to figure out how many generations it would take to domesticate a fox. They only let the nicest and best behaved (towards humans) foxes survive. What is this an example of?
a. Artificial selection
b. Sexual selection
c. Stabilizing selection
d. A and B
30)Homozygous is a term that can describe a(n) _____________.
a. genotype
b. allele
c. heterozygous
d. phenotype
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