Genetics Unit 06

Front

What is the definition of purebred dominant?

Back

An organism that has two identical alleles for a trait, resulting in a dominant phenotype.

Front

What is codominance in genetics?

Back

A form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the phenotypic ratio of a cross between a red flower (RR) and a speckled flower (RB)?

Back

2 red flowers and 2 speckled flowers.

Front

What is the genotype of an individual with type AB blood?

Back

AB

Front

What does heterozygous mean?

Back

An organism that has two different alleles for a specific trait.

Front

What is the genotype of a heterozygous green watermelon?

Back

Gg

Front

What is a Punnett square used for?

Back

A tool used to predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What is the probability of obtaining a white flower if the ratio is 3 in 4 for colored flowers?

Back

1 in 4.

Front

What does dominant mean in genetics?

Back

An allele that expresses its phenotype even in the presence of a recessive allele.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.