Intro to Genetics!

Front

How many alleles does an offspring receive from each parent to determine a specific trait?

Back

One allele from each parent.

Front

What is the term for having two different genes for a trait?

Back

Heterozygous.

Front

If Squidward has a genotype of Bb for light blue skin, is he a purebred or hybrid?

Back

Hybrid.

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Front

When two heterozygous tall pea plants (Tt) are crossed, what percentage of their offspring will be tall?

Back

75% tall and 25% short.

Front

What is the term for having two identical alleles for a trait?

Back

Homozygous.

Front

What is the difference between dominant and recessive alleles?

Back

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

Front

What is a phenotype?

Back

The physical expression of a trait.

Front

What is the purpose of a Punnett square?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

What does it mean if an organism is described as a purebred?

Back

It has two identical alleles for a specific trait.