Mendel and Heredity Flashcard Review

Front

What is the principle of dominance in genetics?

Back

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

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What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., GG, Gg, gg).

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Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype and environment.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genotypes of offspring from a genetic cross.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., AA or aa).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Aa).

Front

What is the probability of offspring being green if a yellow pea pod (gg) is crossed with a green pea pod (GG)?

Back

100% of the offspring will be green (Gg).

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NGSS.HS-LS3-1

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Front

What is the expected phenotype ratio in a monohybrid cross?

Back

The expected phenotype ratio in a monohybrid cross is typically 3:1 for dominant to recessive traits.

Front

What is the significance of Gregor Mendel's experiments?

Back

Gregor Mendel's experiments established the foundational principles of heredity and the laws of inheritance.

Tags

NGSS.HS-LS3-1

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Front

What is the recessive trait in pea plants when crossing red (R) and white (r) flowers?

Back

The recessive trait is white flowers (rr).