Mendelian & Non-Mendelian Genetics

Front

What is the genotype for a homozygous dominant offspring for round seeds (R) that are dominant to wrinkled seeds (r)?

Back

RR

Front

What are the different forms of a gene called?

Back

Alleles

Front

What is the expected phenotype ratio in offspring when a female roan cow (codominance) mates with a male roan cow?

Back

1 Brown: 2 Brown and White: 1 White

Front

In a breed of chicken that shows codominance for feather color, what will be the feather appearance of heterozygous chickens?

Back

Speckled black and white

Front

What is the genotype for a heterozygous dominant offspring for green peas (G) that are dominant to yellow peas (g)?

Back

Gg

Front

Define Mendelian genetics.

Back

Mendelian genetics is the study of how traits are inherited through the interactions of alleles, based on Gregor Mendel's laws of inheritance.

Front

What is the principle of segregation in genetics?

Back

The principle of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.

Front

What is codominance?

Back

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

Front

What is the phenotype of a homozygous recessive genotype?

Back

The phenotype of a homozygous recessive genotype is the expression of the recessive trait.

Front

What is the expected genotype ratio from a monohybrid cross?

Back

1:2:1 (1 homozygous dominant: 2 heterozygous: 1 homozygous recessive)