Genetics Intro

Which statement below is true?

• You have the same DNA as your mom.

• You have the same DNA as your dad.

• Siblings have the same DNA.

• Your DNA is unique to only you.

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The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

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NGSS.HS-LS3-2

Which is heterozygous ?

• Tt

• TT

• ZZ

• E

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Which is homozygous ?

• Zz

• SS

• Xx

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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Which of the following is a phenotype?

• BB

• hair

• bb

• Blue eyes

What is a phenotype?

• The genetic make up (code)

• The physical trait that we see

• The DNA inside the nucleus

• The alleles that make up a trait

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

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

Squidward has light blue skin, and his genotype for this trait is Bb. Which of the following would describe Squidward?

• Purebred

• Hybrid

• Homozygous

• Sex-linked

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NGSS.HS-LS3-1

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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