Author Question: Which statement supports the proposition that the presence of an X chromosome appears to be ... (Read 47 times)

anshika · **on:** Jun 22, 2018

Which statement supports the proposition that the presence of an X chromosome appears to be necessary for life?

a. X-chromosomal genotypes are expressed as consistent phenotypes at a rate of around 85, while Y-chromosomal genotypes are expressed as consistent phenotypes at a rate of only about 15.
b. The X chromosomes are expressed far earlier in the prenatal period than the Y chromosomes.
c. There are no chromosomal disorders wherein a person has only Y chromosomes.
d. Most of the lethal chromosomal disorders, including Tay-Sachs disease and cystic fibrosis, are located on the Y chromosome.

Question 2

According to the research of Diana Baumrind (2013),

a. girls of authoritarian parents are likely to be defiant.
b. boys of authoritarian parents are likely to be low in independence.
c. children of authoritarian parents tend to anxious and irritable.
d. authoritarian parenting is associated with high levels of emotional and social maturity.