Genetics and Heredity Vocab

Front

What is a purebred organism?

Back

An organism that always produces offspring with the same form of a trait as the parent.

Tags

NGSS.HS-LS3-1

Front

What does recessive mean in genetics?

Back

A trait of an organism that can be masked by the dominant form of a trait.

Front

What is a gene?

Back

A segment of DNA on a chromosome that codes for a specific trait.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Front

What is phenotype?

Back

An organism's physical appearance, or visible traits.

Front

What is DNA?

Back

A complex molecule containing the genetic information that makes up the chromosomes.

Front

What is a dominant trait?

Back

A trait that cannot be masked and is expressed in the phenotype even if only one allele is present.

Front

What is a hybrid organism?

Back

An organism that has two different alleles for a specific trait.

Front

What is an allele?

Back

An alternative form of a gene that can exist at a specific locus on a chromosome.

Tags

NGSS.HS-LS3-1

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2