Genetics and Heredity

Front

A recessive allele is represented by a ______ letter.

Back

lower-case

Front

In animals, shaggy fur is dominant to short fur. According to the genotypes shown, what percent of offspring will have short fur?

Back

50%

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

Back

25%

Front

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

Back

recessive

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 expresses its trait only 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 genotype?

Back

The genetic makeup of an organism, represented by alleles.