Chapter 14- Mendel and the Gene Idea | Baamboozle - Baamboozle

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Mendel and the Gene Idea

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Define character.

A heritable feature that varies among individuals.

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Define trait.

Each variation on a character- like purple or white for flower color.

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Define true-breeding.

Pure-bred- organisms that only pass a particular phenotypic trait on to their offspring.

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Define hybridization.

Crossing two true breeding varieties- like a purple flower with a white flower

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What is the P generation?

Parental generation

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What is the F1 generation?

First generation after P generation- Mendel's hybrid offspring

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What is the F2 generation?

Offspring from the F1 generation.

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What are alleles?

Alternative versions of genes.

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Explain a dominant allele.

Determines the organism's appearance.

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Explain a recessive allele.

No noticeable effect on the organism's appearance.

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Explain Mendel's Law of Segregation.

Alleles for heritable traits segregate (separate from each other) during gamete formation and end up in different gametes.

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Explain homozygous.

An organism that has a pair of identical alleles for a character is said to be homozygous.

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Explain phenotype.

Physical appearance.

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Explain genotype.

Genetic makeup.

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What is a testcross?

Breeding an organism of unknown genotype with a recessive homozygote can reveal the unknown genotype.

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Monohybrid?

One trait.

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