AP Genetics Part 1

Front

What is the principle of dominance in genetics?

Back

The principle of dominance states that in a heterozygous individual, one allele (dominant) can mask the expression of another allele (recessive).

Front

Who is known as the Father of Genetics?

Back

Gregor Mendel is known as the Father of Genetics for his foundational work on inheritance patterns in pea plants.

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 phenotype that is a blend of the two.

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygous individual are fully expressed, resulting in offspring with a phenotype that shows both traits.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, represented by the alleles inherited from the parents.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What is the expected phenotypic ratio of a monohybrid cross?

Back

The expected phenotypic ratio of a monohybrid cross between two heterozygous individuals is 3:1.

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 the significance of the F1 generation in genetics?

Back

The F1 generation refers to the first filial generation of offspring resulting from a cross between two parental (P) generations.