If a human has the genotype XXXY, they would have:
A. 3 inactivated X chromosomes and be
male.
B. 2 inactivated X chromosomes and be
male.
C. 3 inactivated X chromosomes and be
female.
D. 2 inactivated X chromosomes and be
female.
E. 1 inactivated X chromosome and be male.
B
You might also like to view...
A phenotype reflecting a new combination of genes occurring during gamete formation is called
A) a recombinant type. B) an independent assortment. C) heterozygous. D) homozygous. E) a multihybrid cross.
Their cytoplasm includes endoplasmic reticulum:
A. Eukaryotes B. Prokaryotes C. Both D. Neither
In a marine ecosystem with an inverted biomass pyramid, which trophic level should have the smallest number of organisms?
A. zooplankton B. phytoplankton C. secondary carnivores (tuna) D. primary carnivores (sardines) E. detritivores
Why is it entirely possible for a pathogen to appear susceptible in susceptibility testing and resistant in a real-life context?
A) A person's liver may break down the drug before it even begins to benefit the patient. B) Bacterial levels and active drug concentrations vary from one tissue to another in an active infection. C) An active infection is more likely to mutate due to the larger population. D) The ability of the pathogen to live as part of a biofilm and benefit from the protection of other bacteria does not exist in susceptibility tests. E) A real-life infection allows for the possibility of genetic crossover with different bacteria, whereas tests in the lab are focused on studying a single strain of bacteria.