Unit 5 Review - Heredity

Front

What is the phenotypic ratio in a dihybrid cross of complete dominance?

Back

9:3:3:1

Front

What are the expected phenotypes in the offspring of a true-breeding yellow-seeded plant crossed with a true-breeding green-seeded plant?

Back

100% yellow seeds

Front

What is the probability of obtaining a red, axial offspring in a complete dominance cross between a white, terminal flower and a red, axial flower?

Back

9/16

Front

According to Mendelian inheritance, what phenotype will a heterozygous individual exhibit?

Back

Dominant

Front

What is the phenotypic ratio in a monohybrid cross of incomplete dominance?

Back

1:2:1

Front

Define complete dominance in genetics.

Back

A form of inheritance where one allele completely masks the effect of another allele.

Front

What is a dihybrid cross?

Back

A genetic cross that examines the inheritance of two different traits.

Front

What does the term 'true-breeding' mean?

Back

Organisms that, when mated, produce offspring with the same phenotype for a specific trait.

Front

What is the principle of segregation?

Back

The principle stating that during the formation of gametes, the two alleles for a trait separate from each other.

Front

Explain the concept of genotype.

Back

The genetic makeup of an organism, represented by the alleles it possesses.