Bio Genetics Review

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

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Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

• Purebred
• Hybrid

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NGSS.HS-LS3-1

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Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

What is a phenotype

• The genetic make up (code)
• The physical trait

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the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

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having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

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NGSS.HS-LS3-1

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

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NGSS.HS-LS3-1

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G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

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NGSS.HS-LS3-1

If T=Tall & t=short, what is the genotypic ratio?

• 1:3
• 3:1
• 1:2:1
• 2:2

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