Duffy factor is due to a chemical that occurs on the membranes of red blood cells and is sometimes used as a blood-typing attribute in the same way that ABO and Rh factor blood types are used. Recent research has found that people with Duffy factor are
about 40% less likely to be infected with HIV, given similar circumstances. Given that HIV affects white blood cells, how would you characterize the Duffy factor gene, and why?
What will be an ideal response?
It is pleiotropic because it causes different effects in different tissues.
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Monoclonal antibodies are those that:
a. react with many different types of anti-gens. b. react with many species of bacteria within the same genus. c. are produced by the offspring of a single hybrid cell. d. can be produced from many different spe-cies of host organisms.
Which motor region processes learned motor skill patterns?
a. Wernicke’s area b. Broca’s area c. temporal lobe d. premotor cortex e. frontal eye field
Competition has been regarded as a major force behind species divergence and specialization
Indicate whether the statement is true or false
In vertebrates and plants, what types of modifications to the N-terminal tails of histones lead to heterochromatin formation?
What will be an ideal response?