"does stress during a woman's first trimester of a pregnancy affect the infant's birth weight? " is a

Feeling stressed is common during pregnancy. ... When you're pregnant, this type of stress can increase the chances of having a premature baby (born before 37 weeks of pregnancy) or a low-birthweight baby (weighing less than 5½ pounds). Babies born too soon or too small are at increased risk for health problems.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;