Unit 2: Genetics Test Review

Front

What is the study of heredity called?

Back

Genetics

Front

What determines the code of a DNA molecule?

Back

The order (sequence) of the nitrogen bases.

Front

What is it called when more than one gene determines the phenotype for one trait?

Back

Polygenic traits.

Front

Which genotype represents a heterozygous individual?

Back

Aa.

Front

How are individuals III-2 and II-4 related if III-2 is the child of II-4?

Back

Dad and daughter.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What is the term for different forms of a gene?

Back

Alleles.

Front

What is the phenotype?

Back

The observable characteristics of an organism.

Front

What is the genotype?

Back

The genetic makeup of an organism.

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygous individual contribute to the phenotype.