Unit 10 - Mendelian Genetics

Passing on traits from parents to offspring

• Chromosome

• Genotype

• Heredity

• Allele

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The study of heredity

• Genetics

• Genome

• Allele

• Punnett Square

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A genotype where only dominant alleles were passed on

from both parents for one trait

Ex: BB, AA, TT, LL

• Homozygous Recessive

• Homozygous Dominant

• Dihybrid

• Heredity

A genotype where only recessive alleles

were passed on from both parents for one trait

ex: bb, aa, tt, ll

• Heredity

• Homozygous Dominant

• Homozygous Recessive

• Phenotype

A genotype where one dominant and one recessive allele was passed on from both parents for one trait.

Ex: Bb, Aa, Tt, Ll

• Allele

• Homozygous Dominant

• Homozygous Recessive

• Heterozygous

The observable traits dictated by the genotype

• Phenotype

• Genotype

• Homozygous Recessive

• Homozygous Dominant

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The Italian monk/scientist who first showed

the principles of genetics

• Watson and Crick

• Linnaeus

• Darwin

• Mendel

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What is the percentage of homozygous recessive offspring?

• 0%
• 25%
• 50%
• 75%

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Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?

• Gg
• gg
• GG

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In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?

• white and purple
• white 
• purple
• lavendar

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