Heredity Part II

Front

What is the term used to describe the passing down of traits from one generation to the next?

Back

Heredity

Front

Which type of genotype consists of two different alleles?

Back

Heterozygous

Front

What is the probability of children inheriting a recessive trait if both parents are heterozygous?

Back

25%

Front

Which form of reproduction leads to more genetic variation?

Back

Sexual reproduction

Front

What does it mean if an allele is described as 'dominant'?

Back

It is always expressed if present.

Front

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

Back

Phenotype

Front

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

Back

Genotype

Front

What is a Punnett square used for?

Back

To predict the genotypes of offspring from parental crosses.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous has identical alleles; heterozygous has different alleles.

Front

What is a recessive allele?

Back

An allele that is only expressed in the phenotype if two copies are present.