Heredity and DNA

Front

What is the term for a trait that is only expressed when two identical alleles are present?

Back

homozygous recessive

Front

What is the term for an organism that has two identical alleles for a particular gene?

Back

homozygous

Front

According to Chargaff's Rule, if I have a DNA molecule with 18% Thymine, it must have __________ % Guanine.

Back

32

Front

What is the term for an organism that has two different alleles for a particular gene?

Back

heterozygous

Front

What is the term for a genetic cross between two individuals that differ in one trait?

Back

monohybrid cross

Front

What is the term for the observable characteristics of an organism?

Back

phenotype

Front

What is the term for the genetic makeup of an organism?

Back

genotype

Front

What is the principle that states that alleles for different traits are distributed to gametes independently of one another?

Back

Law of Independent Assortment

Front

What is the term for a cross between an individual with an unknown genotype and a homozygous recessive individual?

Back

test cross

Front

What is the term for a situation where both alleles contribute to the phenotype of the organism?

Back

codominance