What are genetically modified organisms (GMOs) also called?
A) artificial crop plants
B) artificially selected organisms
C) transgenic organisms
D) mutant crop plants
C
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Which of the following uses a special form of DNA polymerase to rapidly increase the number of copies of specific regions of DNA for special analysis?
a. Gel electrophoresis b. Polymerase chain reaction (PCR) c. Cloning d. Annealing
You have a red male glyptodont but don't know if he is a heterozygote (Aa) or a homozygote (AA). Which mating would most quickly reveal his genotype?
a. With a yellow female b. With a red female
All tissues and organs of an adult animal arise from
three primary tissue layers, or germ layers that form in early embryos: __________, __________, and __________ into blood. Fill in the blank(s) with the appropriate word(s).
At what stage does the diploid zygote form?
a. When the sperm nucleus and the egg nucleus fuse b. When the female cone begins to bud from the tree c. When the seeds drop from the tree d. When the pollen tube begins to grow