7th Grade Unit 5 Genetics

Who is Gregor Mendel and why is he important in the field of genetics?

He is the father of genetics.

Heredity

The passing of traits from parents to offspring

Gene

The factor that controls a factor

Trait

The characteristics that are passed from parent to offspring.

Allele

Different form of a gene

Phenotype

An organism’s physical appearance of the traits it has.

Genotype

The allele combination or genetic makeup of an organism.

Recessive

The allele that is hidden whenever the dominant allele is present.

Dominant

The allele whose trait always shows up if the allele is present

Hybrid

An organism that results from the breeding of 2 genetically different individuals.

Purebred

An offspring that has many generations of the same trait.

Homozygous

An organism that has 2 of the same alleles for a trait.

Heterozygous

An organism that has 2 different alleles for a trait.