Chapter 4 Science of Genetics

Front

Blue-eyed is a ______.

Back

phenotype

Front

Attached earlobes are a recessive trait. If you receive a DOMINANT allele from each of your parents, what kind of earlobes will you have?

Back

Detached (free) earlobes

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

Heterozygous is when...

Back

the alleles are different.

Front

Which of the following is a phenotype?

Back

red hair

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What does dominant mean in genetics?

Back

A dominant allele is one that expresses its trait even when paired with a recessive allele.

Front

What does recessive mean in genetics?

Back

A recessive allele is one that only expresses its trait when paired with another recessive allele.

Front

What is the difference between phenotype and genotype?

Back

Phenotype is the observable traits, while genotype is the genetic makeup.

Front

What is a Punnett square used for?

Back

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