Why is anal sex more apt to transfer the HIV virus than vaginal sex? What will be an ideal response?
The lining of the rectum is not evolved to withstand the friction that comes with sexual intercourse.
As a result, there is significantly more tearing that takes place in the rectum during anal sex and this
exposes the virus to the circulatory system where it thrives.
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You have learned that having linear DNA has consequences, the major one being that the DNA gets shortened every time it replicates, something that does not happen with the circular DNA found in prokaryotes
What, then, is the advantage of having linear DNA? A. Linear DNA is easier to package than circular DNA. B. Linear DNA is less susceptible to viruses than circular DNA. C. Since mitochondria and chloroplasts have circular DNA, nuclear DNA had to be linear. D. Replication can begin from multiple sites on a linear DNA, allowing for rapid replication and relieving the evolutionary pressure for a streamlined genome. E. All of the answer options are correct.
What gram-positive organisms are the smallest living cells?
a. actinomycetes b. halophiles c. prions d. mycoplasmas e. cyanobacteria
In the diagram below, the monomer that serves as the subunit to creating this organic molecule category is called
a. nucleotide. b. sugar. c. base. d. glucose. e. phosphate.
Two species of frogs belonging to the same genus occasionally mate, but the embryos stop developing after a day and then die. These two frog species separate by _____
A) reduced hybrid viability B) hybrid breakdown C) reduced hybrid fertility D) gametic isolation