Genetics Review

Front

What does homozygous mean?

Back

Having two of the same genes for a trait, also known as purebred.

Front

What is incomplete dominance?

Back

A type of inheritance where two alleles blend together to form a new phenotype.

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygous individual contribute to the phenotype, resulting in a mix of both traits.

Front

What is the phenotypic ratio when crossing a red flower (RR) with a speckled flower (RB)?

Back

2 red flowers and 2 speckled flowers.

Front

What is an allele?

Back

One form of a gene that can exist in different variations.

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is a genotype?

Back

The genetic constitution of an individual, representing the alleles inherited from parents.

Front

Explain Mendelian genetics.

Back

The study of how traits are inherited through generations, based on the principles established by Gregor Mendel.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even in the presence of a recessive allele, while recessive alleles only express their trait when paired with another recessive allele.

Front

What is a trait?

Back

A specific characteristic or feature of an organism, which can be influenced by genetics.