Genetics DO Now

Front

What is an allele?

Back

An allele is a variant form of a gene that determines a specific trait. Each individual inherits one allele from each parent.

Front

How many alleles does an offspring receive from each parent?

Back

An offspring receives one allele from each parent.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

Give an example of a phenotype.

Back

Blue eyes is an example of a phenotype.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as BB or bb.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Bb.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, representing the alleles inherited from the parents.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup (alleles) of an organism, while phenotype refers to the observable traits.

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

What is a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.