Biology - Genetics and Meiosis

Which of the following cell types is formed by meiosis?

• muscle cells
• skin cells
• sperm cells
• blood cells

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NGSS.HS-LS3-2

The inherited combination of alleles is known as the offspring's

• heredity
• phenotype
• genotype
• redigree

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

An organism's appearance is known as its

• heredity
• phenotype
• genotype
• pedigree

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NGSS.HS-LS3-2

Sex cells are produced through the process of

• mitosis
• cytokinesis
• binary fission
• meiosis

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NGSS.HS-LS3-2

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

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

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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

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NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

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NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

• 1

• 2

• 3

• 4

Human gametes contain how many chromosomes?

• 46

• 23

• 12

• 28

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NGSS.HS-LS3-2