The Results of a Study of a Population Is Presented

Multiple Choice

The results of a study of a population is presented in the following table. The "-" indicates that the other allele is unknown Which of the conclusions listed below is correct?

A) All of the S - offspring from the S - X S - matings are homozygotic
B) If the S- offspring of the S - X S - matings were mated to the S - offspring from the S - X ss matings there would be no ss offspring all would be S -
C) The ratios of the offspring in the S- X S - matings conform to the expected ratio for a monhybrid cross
D) The ratios of the offspring in the S - X S - matings are due to some S - parents being homozygotic and some being heterozygotic