Week 5 Flashcard Review - Mendelian Genetics

Front

Who is considered the 'Father of Genetics'?

Back

Gregor Mendel

Front

What is the predicted percentage of homozygous recessive offspring in a cross between two heterozygous parents (Tt x Tt)?

Back

25%

Front

What does 'Tt' represent in genetics?

Back

Heterozygous

Front

If a trait is heterozygous, what can we say about the alleles?

Back

They are different.

Front

What do we call the observable traits resulting from a genotype?

Back

Phenotype

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles.

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.