Genetics Review

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

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NGSS.HS-LS3-1

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 which is heterozygous ?  

• Tt
• TT

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NGSS.HS-LS3-1

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

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NGSS.HS-LS3-1

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An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

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NGSS.HS-LS3-1

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

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

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

Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?

• 50% tall and 50% short
• 75%tall and 25% short
• 100%short

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NGSS.HS-LS3-1

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A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

• 25%
• 50%
• 75%
• 100%

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NGSS.HS-LS3-1

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

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NGSS.HS-LS3-1

A section of the DNA strand that determines a specific trait

• gene
• trait
• chromosome
• allele

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NGSS.HS-LS3-1