In regards to altruism, what way are humans like vampire bats?
A. Their altruism is based on haplodiploidy.
B. They are both Chiroptera.
C. They engage in reciprocal altruism.
D. Their altruism is based on kin selection.
Answer: C
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Areas of the chromosome that remain highly condensed are called ______
A. Euchromatin B. Facultative heterochromatin C. Constitutive heterochromatin D. Barr body
How is a typical prokaryotic genome similar to a eukaryotic genome?
A. Both are composed of DNA packaged in the nucleus. B. Both are composed of double-stranded DNA. C. Both are composed of circular chromosomes. D. Both are composed of multiple, linear chromosomes. E. Both contain chromosome with a single origin of replication.
If gene replacement therapy became available
a. it would not work for humans because we have too many chromosomes. b. it would involve a surgical technique that separates chromosomes that have failed to segregate properly during meiosis II. c. it could be used to treat victims of a recessive disease by removing the dominant damaging autosomal allele and replacing it with a harmless one. d. it would replace defective alleles with normal ones. e. it would remove entire chromosomes from cells and repair the defective genes.
Most of the vitamin K used in the body is produced by __________ in the large intestine
What will be an ideal response?