Unit 4: Genetics Vocab Flashcard 1- D

Front

What is a phenotype?

Back

The physical appearance of a gene.

Front

What does a dominant allele do?

Back

Masks recessive alleles.

Front

What are observable characteristics or traits of an organism?

Back

Phenotype.

Front

What is a recessive allele?

Back

An allele that is not expressed when combined with a dominant form of the allele.

Front

What is heredity?

Back

The passing of genes from parents to offspring.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the physical expression of that genetic makeup.

Front

What is a homozygous genotype?

Back

A genotype consisting of two identical alleles for a particular gene.

Front

What is a heterozygous genotype?

Back

A genotype consisting of two different alleles for a particular gene.

Front

What is the law of segregation?

Back

The principle that during the formation of gametes, the two alleles for a trait separate from each other.

Front

What is the law of independent assortment?

Back

The principle that alleles for different traits are distributed to gametes independently of one another.