Genetics

Front

What does heterozygous mean?

Back

Having two different genes for a trait.

Front

What is a phenotype?

Back

The physical trait of an organism.

Front

What is homozygous dominant?

Back

Having two identical dominant alleles for a trait (e.g., YY).

Front

What is DNA?

Back

A complex molecule that carries genetic information defining an organism's traits.

Front

Where is DNA located in a eukaryotic cell?

Back

In the nucleus.

Front

What is a genotype?

Back

The genetic makeup or code of an organism.

Front

What is the difference between genotype and phenotype?

Back

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

Front

What are alleles?

Back

Different forms of a gene that can exist for a particular trait.

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.