Genetics

Front

Which describes the type of cross shown in the picture? Options: co dominance, incomplete dominance, Mutation, Nondisjunction

Back

incomplete dominance: both homozygous alleles become a mixture for the heterozygous

Front

Which parents will give a 25% chance of having offspring with curly hair? Options: 2 heterozygous straight hair (Tt), 2 homozygous straight hair (TT), 1 homozygous curly (tt) and 1 homozygous straight (TT), 1 heterozygous straight (Tt) and 1 homozygous curly (tt)

Back

2 heterozygous straight hair (Tt)

Front

Mrs. Jones has blood type AA.
Mr. Jones has blood type AB.
What are the genotypes of her offspring?

Back

50% AA; 50% AB

Front

Curly hair is dominant to straight hair.
Two straight hair individuals are crossed. What will be the phenotypes of the offspring?

Back

100% straight

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

Which of the following is NOT a genotype? Options: heterozygous, a trait, Bb, homozygous recessive

Back

a trait

Front

Which of the following alleles is homozygous (purebred) recessive? Options: Tt, tt, TT, t

Back

tt

Front

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? Options: 0 %, 25%, 50%, 75%

Back

25%

Front

Heterozygous is when...

Back

the alleles are different

Front

In a pedigree, what shape represents a male? Options: circle, square, triangle, diamond

Back

square