Mendelian Genetics

Front

What is a version of a gene called?

Back

An allele.

Front

What phenotype does the genotype 'Tt' produce if 'T' is dominant for tall?

Back

Tall.

Front

What is the probability that offspring will express the dominant trait if both parents are heterozygous?

Back

75%.

Front

What genotype is represented by 'tt'?

Back

Homozygous Recessive.

Front

If green is dominant over purple, what is the genotype for a purple individual?

Back

gg.

Front

What is the definition of a dominant allele?

Back

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

Front

What is the definition of a recessive allele?

Back

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

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism.