Ch. 2 Traits and How They have Changed - Genetics

The first recorded scientific study and genetics was done by

• Egor Mendeleeve

• Father George Nendlel

• Gregor Mendel

• Ivan Manel

Punnett squares show the possible _____________ of offspring

• genotypes

• number of chromosomes

• DNA sequence

• letters of sequence

The phenotype displays _________ characteristics.

• chemical

• dominant

• recessive

• physical

When a dominant allele is present the offspring will show ___________ characteristics.

• recessive

• dominant

• homozygous

• heterozygous

Mendel's research evolved the terms Recessive Traits and Dominant Traits in genetics studies.

• True

• False

_____________ is a combination of the genetic makeup and environmental effects.

• phenotype

• genotype

• genetics

• heredity

____________________ is an organism's genetic makeup working behind the scenes.

• phenotype

• genetics

• genotype

• gene

A dominant gene usually shows itself over a

• homozygous gene

• heterozygous gene

• recessive gene

• sex-linked trait

A trait that is controlled by more than two alleles (your parents, grandparents and great grandparents) is controlled by

• DNA sequencing

• multiple phenotypes

• hereditary sequencing

• polygenic inheritance

The actual transmission of the physical qualities we receive from our parents, and pass on to our offspring, and the law by which beings tend to repeat characteristics from one generation to the next is called

• physiology

• breeding

• inheritance

• heredity