When Thomas Hunt Morgan crossed red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result?

According to Mendel's Law of Segregation, which of the following is a true statement?

Mendel's observation of the segregation of alleles in gamete formation has its basis in which of the following phases of cell division?

Mendel's law of independent assortment has its basis in which of the following events of meiosis I?

Wild type fruit flies have red eyes. A white-eyed female fly is crossed with a red-eyed male fly. All of the females from the cross are red-eyed and all of the males, white-eyed. What type of inheritance pattern is this?

Women with X-linked disorders always pass the genes for the disorder on to ______. While men with X-linked disorders always pass the genes for the disorder on to _______.

The following pedigree is for the X-linked-recessive trait for color blindness. Using XN for the normal allele and Xn for the color blindness allele, fill in the top half of the boxes/circles with the genotype. Also, fill in the bottom half of the boxes/circles with the phenotype (Normal vision or color blind). If it is impossible to know for certain a specific allele in the genotype, then place a '?' to represent the allele that is in question.

If a genetic counselor was examining a pedigree chart and noticed an occurrence of a disease in every generation, the counselor would most likely assume that the disease was caused by:

The pedigree chart shown depicts the inheritance pattern of __________.