Which one of the following statements does not accurately describe segregation of the sex chromosomes?
A. In human males, segregation of the X
chromosome from the Y chromosome occurs
during anaphase I of meiosis.
B. In humans, half of the fertilized eggs are
expected to be male and half are expected to
be female; this 1:1 ratio is characteristic of
Mendelian segregation.
C. The secondary sex ratio of males to
females at birth usually shows a slight excess
of males.
D. In humans, the sex at each birth is not a
random process because there are often
large families with either all girls or all boys.
E. Females are slightly less likely to survive
from conception to birth, but males are
slightly less likely to survive from birth to
reproductive maturity.
D
You might also like to view...
Which approach would help to identify biologically produced sulfur in a sediment sample?
A) enrichment B) isotopic fractionation C) microautoradiography D) microelectrodes
Which genus of great apes includes bonobos?
a. Pan b. Gorilla c. Pongo d. Homo
An ecologically friendly city that has housing, work, and schools located close to each other would decrease the requirement for
a. public transportation b. pedestrian traffic c. bikes d. cars e. electricity
Transfusion reactions are the result of antibody reaction to
A) glycolipids and glycoproteins on the surface of red blood cells. B) MHC molecules on red blood cells. C) MHC molecules on white blood cells. D) plasma proteins. E) foreign antibodies.