Genetics Quiz

Which of the following cell types is formed by meiosis?

• muscle cells
• skin cells
• gametes

• blood cells

What is a phenotype?

• The expression of a trait; what you see.
• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

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NGSS.MS-LS1-4

An organism's appearance is known as its

• heredity
• phenotype
• genotype
• pedigree

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What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

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NGSS.HS-LS3-1

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A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?

• 1
• 2
• 3
• 4

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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

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt

Tags

NGSS.HS-LS3-1

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A gene is

• a section of DNA

• a chemical found in the nucleus of cells

• contains instructions for building a protein

• all of the above

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NGSS.HS-LS1-1

During meiosis, one parent cell gives rise to how many daughter cells?

• 1

• 2

• 3

• 4