Mothers cannot pass down X-linked diseases to their sons. (True or false?)

Mothers cannot pass down X-linked diseases to their sons.
 
  Indicate whether this statement is true or false.

Question 2

A carrier is a person whose phenotype contains a particular gene.
 
  Indicate whether this statement is true or false.

Question 3

X-linked diseases are more common for females than for males, because females have two X chromosomes.
 
  Indicate whether this statement is true or false.

Question 4

A dominant gene controls the expression of a characteristic even when a recessive gene is the other half of the gene pair.
 
  Indicate whether this statement is true or false.

Question 5

Every human behavioral tendency is affected by many genes, some interacting in dominant-recessive patterns and some in additive fashion.
 
  Indicate whether this statement is true or false.

Question 6

Height is influenced by an estimated 10 genes.
 
  Indicate whether this statement is true or false.