Non-Mendelian Genetics practice

Front

What are the three main types of inheritance patterns in genetics?

Back

Mendelian inheritance, codominance, and incomplete dominance.

Front

What is codominance in genetics?

Back

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

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two.

Front

What does it mean for an allele to be recessive?

Back

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

Front

What is a heterozygous genotype?

Back

A heterozygous genotype consists of two different alleles for a particular gene, one dominant and one recessive.

Front

What is the phenotype of a heterozygous chicken with codominant feather color alleles for black and white?

Back

The phenotype will be speckled black and white feathers.

Front

What is the significance of blood type A and B being codominant?

Back

It means that individuals with both A and B alleles will express both blood type characteristics simultaneously.

Front

How can you determine if an individual is a carrier for a recessive trait?

Back

An individual is a carrier if they have one dominant allele and one recessive allele for a trait, meaning they do not express the trait but can pass it on.

Front

What is the expected percentage of female offspring that will be carriers for a recessive disease if one parent is a carrier and the other is affected?

Back

50% of the female offspring will be carriers.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits or characteristics.