Mendel Genetics

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What is the term for the physical expression of a gene?

Back

Phenotype

Front

What is a Punnett Square used for?

Back

To predict the possible genotype from certain parents.

Front

What does it mean if an organism is heterozygous?

Back

It has two different alleles for a trait (e.g., Mm).

Front

What does it mean if an organism is homozygous?

Back

It has two identical alleles for a trait (e.g., MM or mm).

Front

If brown hair is represented by the allele 'B' and blond hair by 'b', what is the genotype for brown hair?

Back

BB or Bb.

Front

Which genotype represents a recessive trait?

Back

bb.

Front

What is the dominant allele for pea plant height if tall is represented by 'T'?

Back

TT.

Front

What is the purpose of a test cross?

Back

To determine the genotype of an organism with a dominant phenotype.

Front

What is the law of segregation?

Back

During gamete formation, the alleles for a trait separate so that each gamete carries only one allele for each gene.