Intro to Genetics

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

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Which is heterozygous ?

• Tt

• TT

• ZZ

• E

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Which is homozygous ?

• Zz
• SS

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The genetic makeup of an organism is its ___.

• heterozygous

• punnet square

• genotype

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Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

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An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

How many pairs of chromosomes exist in each of your cells?

• 10
• 12
• 23
• 46

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Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome

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Which statement is true?

• Your DNA is the same as your siblings.
• Your set of DNA is identical to your mothers.
• Your set of DNA is identical to your fathers.
• Your DNA is unique to you.

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What is the definition of phenotype?

• The physical expression of a trait
• The genetic combination of alleles
• A gene on the DNA strand

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