Unit 6 Review

Front

What is the term for an organism that displays two dominant phenotypes at the same time?

Back

Codominance is a genetic scenario where both alleles in a heterozygous organism contribute to the phenotype, resulting in a display of both traits.

Front

What is the genotype for a yellow plant if G = green and g = yellow?

Back

The genotype for a yellow plant is gg.

Front

What genotype represents a female who is a carrier for hemophilia, a recessive x-linked disorder?

Back

X^H X^h represents a female who is a carrier for hemophilia.

Front

Which of the following is homozygous dominant: Yy, Y, yy, or YY?

Back

YY is homozygous dominant.

Front

How many reindeer does Santa have?

Back

Santa has 9 reindeer.

Front

Define codominance in genetics.

Back

Codominance occurs when both alleles in a heterozygous organism are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous genotypes have two identical alleles for a trait, while heterozygous genotypes have two different alleles.

Front

What does it mean for a trait to be recessive?

Back

A recessive trait is one that is masked by the presence of a dominant allele and only expressed when two recessive alleles are present.

Front

What is an example of a recessive genetic disorder?

Back

An example of a recessive genetic disorder is cystic fibrosis.

Front

What is the significance of X-linked traits?

Back

X-linked traits are associated with genes located on the X chromosome, and they often exhibit different inheritance patterns in males and females.