3b

Front

What is the genotypic ratio for a cross between TT and Tt?

Back

TT = 25%, Tt = 50%, tt = 25%.

Front

Which cross would a farmer choose to get the most short pea plant offspring?

Back

Ttxtt.

Front

What is the inherited combination of alleles known as?

Back

Genotype.

Front

What ratio of the offspring from a cross will be homozygous recessive for tallness if the parents are Tt and Tt?

Back

0 in 4.

Front

What is the genotype of two black mice that produce both black and brown offspring?

Back

Bb x Bb.

Front

Define genotype.

Back

The genetic makeup of an organism, represented by the alleles inherited from the parents.

Front

Define phenotype.

Back

The observable physical characteristics of an organism, determined by its genotype.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.