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A recently found martian family is under study. According to early studies, it was found that D (dextral) is dominant to d (sinistral). The mother and her brother, both have genotype Dd and are sinistral. The father of the family (not their father, but the mother’s husband) is dextral, with the genotype dd. All of their offspring are dextral. What best explains this event?  

Sloths come in two colors, gray and brown. Brown (B) is dominant to gray (b). A mom sloth with brown hair (Bb) mates with a dad sloth who has brown hair (BB). What percent of the offspring will have gray hair? (Assume 100% penetrance and complete dominance)

Assuming 100% penetrance, what is the most likely mode of inheritance shown in the pedigree below? 

Sloths come in two colors, gray and brown. Brown (B) is dominant to gray (b). A mom sloth with brown hair (Bb) mates with a dad sloth who has brown hair (BB). What percent of the offspring will have gray hair? (Assume 100% penetrance and complete dominance)

Assuming 100% penetrance, what is the most likely mode of inheritance shown in the pedigree below? 

Rats fed with a protein-reduced diet during pregnancy resulted in permanent changes in the expression of several genes due to the methylation of specific cytosines during the F1 and the F2 generation. Would this be considered an epigenetic change?

Rats fed with a protein-reduced diet during pregnancy resulted in permanent changes in the expression of several genes due to the methylation of specific cytosines during the F1 and the F2 generation. Would this be considered an epigenetic change?

The consensus sequence AAUAAA is required for accurate cleavage and polyadenylation of pre-mRNAs. What would happen if you delete this consensus sequence?

Final, final. Deep breath. You got this!!

In the pedigree below, the mode of inheritance is autosomal recessive. T represents the dominant allele and t represents the recessive allele. What is/are the possible genotype(s) of individual II-6?