Unit 7 Genetics Review

Front

Heredity is the passing of traits from _____________________ to _____________________

Back

parents to offspring

Front

A male sex cell is called:

Back

sperm

Front

During gametogenesis, how many gametes are made?

Back

Males produce 4 genetically different sperm and females produce only 1 functional egg.

Front

One gene from a pair is called an:

Back

Allele

Front

Which statement best describes chromosomes that contain genes for the same characteristics?

Back

They are homologous.

Front

What is the basic unit of heredity?

Back

Gene

Front

What are the two types of alleles?

Back

Dominant and recessive.

Front

What is the genotype?

Back

The genetic makeup of an organism.

Front

What is the phenotype?

Back

The physical expression of a trait.

Front

What is a zygote?

Back

A fertilized egg cell.