The figure above represents
a. a single chromosome
b. two chromosomes in metaphase plate.
c. an original chromosome with a duplicate.
d. the entire genome of the organism.
e. none of these.
Answer: c
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The milk of goats has been genetically modified to produce human antithrombin, a protein with anticoagulant properties. How did the recombinant plasmid containing the human antithrombin gene get into the goats?
A. The goats ingested bacterial pellets containing the recombinant plasmid, the DNA then integrated into their cells. B. The recombinant plasmid was injected into mammary cells. C. The recombinant plasmid was put into a goat oocyte, which was in turn fertilized and implanted into a surrogate goat mother. D. The recombinant plasmid was put into a viral vector; the virus then infected the goat cells. E. The goat cells were treated with chemical agents such as calcium chloride, which made them competent to take up DNA.
What is DNA hybridization?
What will be an ideal response?
Hypothetically, how could scientists lower Earth's temperature in order to combat global warming?
A) by moving ice from the Arctic to the tropical oceans B) by forcibly melting more glaciers and polar ice caps C) by reflecting more light from land masses D) by decreasing the reflectance of cities
Mate guarding is a reproductive tactic that functions to:
a. reduce paternity uncertainty. b. increase the female's investment in the offspring. c. reduce the male's reproductive investment. d. reduce the female's fitness. e. increase the number of mates to which a male has access.