Biology - Genetics

Front

What is cross-pollination?

Back

Cross-pollination is the transfer of pollen from the flower of one plant to the stigma of another plant, leading to genetic diversity in the offspring.

Front

What is the advantage of cross-pollination?

Back

More diversity in seeds are produced.

Front

What is self-pollination?

Back

Self-pollination occurs when pollen from the same flower lands on its stigma, resulting in offspring that are genetically similar to the parent.

Front

What happens during self-pollination?

Back

Pollen from Flower A lands on the stigma of Flower A.

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.

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What is incomplete dominance?

Back

Incomplete dominance is a genetic situation where the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes.

Front

What is complete dominance?

Back

Complete dominance occurs when the phenotype of the heterozygote is the same as that of the dominant homozygote.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genotypes of a particular cross or breeding experiment.

Front

In a Punnett square, what does a 50% probability for a trait mean?

Back

It means that there is a 50% chance that the offspring will express that trait.

Front

What are alleles?

Back

Alleles are different versions of a gene that determine specific traits.