Which of the following statements about X-linked traits is true?

Colorblindness is a recessive X-linked disorder. A genotypically normal man and a colorblind woman have two sons and one daughter. What is the probability that one son is colorblind and the other two children are phenotypically normal?

When two human haploid cells fuse together the resulting cell will have how many chromosomes?

A human haploid cell will have how many chromosomes?

Fertilization results in __________.

A man has a copy of an X-linked dominant trait. Is it possible for his son to also possess the trait?

Genes that are on the same chromosome are called __________.

In flies, red eyes is a wildtype trait with the allele . This gene is found on the X-chromosome.

A wild type parent and a white-eyed parent are crossed. 50% of daughters have white eyes and 50% of sons have white eyes.

What are the genotypes of the parents?

Red-green colorblindness is an X-linked recessive disorder. Which of the following scenarios is not a possible method by which this disorder can be inherited?

If an autosomal trait skips a generation, it ___________; however, if an autosomal trait does not skip a generation, it ___________.