11.3

Question 1

Autosomal dominant

Answer 1

Trait expressed with one dominant allele present.

Question 2

Autosomal recessive

Answer 2

Trait expressed only when two recessive alleles present.

Question 3

Sex-linked dominant

Answer 3

Trait expressed with one dominant allele on X chromosome.

Question 4

Sex-linked recessive

Answer 4

Trait expressed only with two recessive alleles on X chromosome.

Question 5

Carrier

Answer 5

Individual with one recessive allele, not expressing trait.

Question 6

Pedigree

Answer 6

Diagram showing inheritance patterns across generations.