Genetics Test25

Front

Cross a female with wavy hair (SC) with a straight-haired male (SS). What type of hair will their child have?

Back

0% Curly: 50% Straight: 50% Wavy

Front

What is the figure below called? It is a picture of the chromosomes of an organism.

Back

Karyotype

Front

What is the figure below called? It is a chart that illustrates the passing of a trait in a family through the generations.

Back

Pedigree

Front

Organisms that have two identical alleles for a particular trait are said to be

Back

homozygous.

Front

Cross a yellow pod plant with a green homozygous pod plant. What is the percentage of having the green pod plant?

Back

100%

Front

What is the phenotypic ratio of this Punnett square? A=Axial flower position and a=Terminal flower position

Back

75% Axial flower position: 25% Terminal flower position

Front

Situations in which one allele for a gene is not completely dominant over another allele for that gene (blending) is called

Back

incomplete dominance.

Front

What is the genotypic ratio of this Punnett square? A=Axial flower position and a=Terminal flower position

Back

25%aa:50%Aa:25%AA

Front

The is a situation in which both alleles contribute to the phenotype of an organism. (both alleles are dominant and are expressed)

Back

codominance

Front

A situation in which a trait is produced by the interaction of several genes (e.g., skin color).

Back

polygenic traits