Mendelian Genetics

Front

What are recessive alleles?

Back

Recessive alleles are only expressed when two copies are present in an organism's genotype.

Front

What is the physical expression of a trait called?

Back

The physical expression of a trait is called the phenotype.

Front

What are segments of DNA that code for traits called?

Back

Segments of DNA that code for traits are called genes.

Front

What is the phenotype of offspring from a homozygous dominant and a homozygous recessive guinea pig?

Back

The phenotype of the offspring would be 100% rough coat.

Front

What is the genotype of a parent that can produce both dominant and recessive traits?

Back

The genotype of such a parent is Bb.

Front

What is a dominant allele?

Back

A dominant allele is expressed in the phenotype even if only one copy is present.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, consisting of the alleles inherited from its parents.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic constitution, while phenotype refers to the observable traits.

Front

What is an allele?

Back

An allele is a variant form of a gene that can produce different traits.

Front

What does homozygous mean?

Back

Homozygous means having two identical alleles for a particular gene.