In the above autosomal recessive pedigree what is the genotype of II-1?Question 7Select one:a.Ttb.TTc.ttd.No way to determine

Break Down the Problem

1. Identify the individuals in the pedigree and their phenotypes.
2. Understand the autosomal recessive inheritance pattern.
3. Determine the possible genotypes for II-1 based on parental genotypes and offspring.

Relevant Concepts

1. Autosomal recessive traits require two copies of the recessive allele (e.g., tt) for the individual to express the trait.
2. An individual with at least one dominant allele (e.g., Tt or TT) will not express the recessive trait.

Analysis and Detail

1. Examine the Parents: Since the problem involves a pedigree, analyze the genetic traits of the parents of II-1.
2. Determining II-1's Genotype: If both parents are carriers (Tt), then II-1 can be TT, Tt, or tt. If one of the parents expresses the recessive trait (tt), then II-1 must be Tt or tt.

Verify and Summarize

1. Without the specific pedigree details, it’s difficult to ascertain the genotype of II-1 definitively.
2. Options:
   • If there are affected individuals, II-1 may be a carrier (Tt) or affected (tt).
   • If both parents show the dominant phenotype and II-1 does not, then it may not be possible to determine.

Final Answer

The answer is D. No way to determine unless more information about the phenotypes of II-1's parents is provided.