Human Heredity 11th Edition by Michael Cummings

Exercise 6

The following diagram shows a hypothetical diploid cell. The recessive allele for albinism is represented by a , and d represents the recessive allele for deafness. The normal alleles for these conditions are represented by A and D , respectively.
A) According to the principle of segregation, what is segregating in this cell?
B) According to Mendel's principle of independent assortment, what is independently assorting in this cell?
C) How many chromatids are in this cell?
D) Write the genotype of the individual from whom this cell was taken.
E) What is the phenotype of this individual?
F) What stage of cell division is represented by this cell (prophase, metaphase, anaphase, or telophase of meiosis I, meiosis II, or mitosis)?
G) After meiosis is complete, how many chromatids and chromosomes will be present in one of the four progeny cells?