Heredity and Genetics

Front

What are the possible genotypes of the offspring when a white flower (pp) is crossed with a purple flower (PP)?

Back

All offspring will have the genotype Pp.

Front

What is the term for when the same traits are produced in offspring from generation to generation?

Back

This is called pure breeding.

Front

What do you call the offspring that result from cross breeding?

Back

They are called hybrids.

Front

If two rabbits with the genotype Bb are crossed, how many different genotypes can be found in the offspring?

Back

There can be three possible genotypes: BB, Bb, and bb.

Front

What does it mean to be homozygous for a trait?

Back

It means having two of the same alleles for a gene.

Front

What is the difference between dominant and recessive alleles?

Back

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

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

What is the purpose of a Punnett square in genetics?

Back

A Punnett square is used to predict the genotypes of offspring from a genetic cross.

Front

What is the term for an organism's genetic makeup?

Back

An organism's genetic makeup is referred to as its genotype.

Front

What is the significance of Mendel's laws of inheritance?

Back

Mendel's laws describe how traits are inherited from one generation to the next, including the law of segregation and the law of independent assortment.