Genetics Review Pre-AP

Genotype refers to the ...

• physical expression of the genes

• possible combination of alleles in a gene

• whether an allele is dominant or recessive

• how an organism will appear

Tags

NGSS.HS-LS3-1

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What is a phenotype?

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

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

• homozygous

• hetrozygous

• protein

• chromosome

having two different alleles for a trait (sometimes called hybrid).

• protein

• homozygous

• heterozygous

• genotype

If brown eyes is dominant to blue eyes in sheep, and two brown eyed parents (Bb) have an offspring, what is the chance the offspring is blue eyed?

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

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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

Snapdragon flowers come in red, pink and white.  What type of inheritance is this?

• Complete Dominance
• Incomplete Dominance
• Codominance
• Polygenic Inheritance

Incomplete dominance means that the traits are

• expressed equally
• dominant
• recessive
• blended

Which of the following genotypes is a purebred?

• Bb
• Gg
• bb
• Dd

If green is dominant over purple, then what is the genotype for this individual?

• Purple
• Green
• GG
• gg

Tags

NGSS.HS-LS3-1