Genetics Review Flashcard

Front

In cacti, long arms (A) are dominant to short arms (a). What is the genotype of a heterozygous long arm cactus?

Back

Aa

Front

What is the term for having two different alleles for a trait?

Back

Heterozygous

Front

What is the genotype for homozygous dominant?

Back

AA

Front

If a recessive disease is present, what percentage of female offspring will be carriers if one parent is a carrier?

Back

50%

Front

What is the term for the passing of traits from parents to offspring?

Back

Heredity

Front

What is the genotype of a short arm cactus?

Back

aa

Front

What is the term for having two identical alleles for a trait?

Back

Homozygous

Front

If a plant has the genotype Aa, what type of offspring can it produce when crossed with aa?

Back

50% Aa (long arms), 50% aa (short arms)

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup (e.g., AA, Aa, aa), while phenotype refers to the observable traits (e.g., long arms, short arms).

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents (Aa x Aa)?

Back

3:1 (3 long arms: 1 short arm)