Author Question: In many Western countries, __________. A) rates of miscarriage and birth defects are higher for ... (Read 100 times)

Jramos095 · **on:** Jun 22, 2018

In many Western countries, __________.

A) rates of miscarriage and birth defects are higher for girls
B) rates of learning disabilities and behavior disorders are higher for girls
C) there has been a dramatic increase in sex-selective abortions
D) the proportion of male births has declined in recent decades

Question 2

Eric is more likely than his sister to be negatively affected by X-linked disorders because __________.

A) males are more likely than females to inherit harmful recessive alleles
B) the Y chromosome is much longer than the X chromosome
C) the Y chromosome lacks many corresponding genes to override those on the X chromosome
D) his sex chromosomes match, which makes him more susceptible to disease