The allele for albinism (c) is recessive to the allele for normal pigmentation (C). A normally pigmented woman whose father is an albino marries an albino man whose parents are normal. They have three children, two normal and one albino. What would be the genotype for the two normal children?
A. Cc
B. cc
C. CC
D. either CC or Cc
E. either Cc or cc
Answer: A
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A male produced from an unfertilized haploid egg is an example of what type of sex determination system?
A. X-Y B. Z-W C. X-O D. Haplo-diploid E. None of the answers are correct
If the bacteriophage lambda enters into a host cell and integrates its genome into the host cell, the phage has entered the ________ cycle.
Fill in the blank(s) with the appropriate word(s).
Plastic pollution has had serious ecological consequences in ____.v
a. river ecosystems b. the atmosphere over urban areas c. oceans d. temperate deciduous forests e. desert biomes
Humans have a brain size that is:
A. Twice as large as would be expected for a mammal of our size B. Three times larger than would be expected for a mammal of our size C. Twice as large as would be expected for a primate of our size D. Three times larger than would be expected for a primate of our size E. Six times larger than would be expected for a mammal of our size