Genotype & Phenotype

Front

What is a phenotype?

Back

The physical appearance or observable traits of an organism, such as height, eye color, and facial hair.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by the alleles it possesses, such as MM, Mm, or mm.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene, such as MM or mm.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene, such as Mm.

Front

What is an example of a phenotype?

Back

Facial hair, eye color, and flower color in plants.

Front

What is an example of a genotype?

Back

The genetic code for a trait, such as Bb for brown eyes.

Front

How is Down Syndrome classified?

Back

As a phenotype, which refers to the observable characteristics resulting from the genetic condition.

Front

What is the relationship between genotype and phenotype?

Back

Genotype determines the potential traits (phenotype) an organism can express, but environmental factors also influence phenotype.

Front

What is an allele?

Back

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

Front

What is the difference between dominant and recessive alleles?

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Dominant alleles express their traits even when only one copy is present, while recessive alleles require two copies to express their traits.