Genetics

Front

A recessive allele is represented by a ______ letter.

Back

lower-case

Front

In a Punnett square, where are the parent alleles written?

Back

outside of the boxes (top and left side)

Front

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?

Back

0 in 4

Front

In a Punnett square, a lower case letter stands for a ____________ allele.

Back

recessive

Front

If a black guinea pig (BB) and a white guinea pig (bb) mate, there is a ______ chance that a white guinea pig will be born.

Back

0%

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 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 Punnett square used for?

Back

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

Front

What is the genotype of an organism?

Back

The genetic makeup of an organism, represented by alleles.