Genetics & Heredity

The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

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NGSS.HS-LS3-1

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Sperm from one plant fertilizes the eggs of the same plant in

• cross-pollination
• cross-breeding
• self-pollination
• self-breeding

What step did Mendel take to be sure that his pea plants did not self-pollinate?

• He used two white plants
• He removed the anthers of one plant.
• He added anthers to both plants
• He used plants that were not true breeding

When a plant self-pollinates and all offspring have the same trait as the parent, it is called

• true-breeding plant.   
• cross-breeding plant
• self-propagating plant.
• hybrid plant.

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NGSS.HS-LS3-1

When parents with different traits are bred, a trait that reappears in the second generation after disappearing in the first generation is a

• dominant trait
• true-breeding trait
• recessive trait
• characteristic

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NGSS.HS-LS3-1

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When a first-generation plant self-pollinates, what is the ratio of dominant to recessive traits in the second-generation plants?

• 1:3
• 4:1
• 1:4
• 3:1

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NGSS.HS-LS3-1

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If a plant with the genotype Pp is allowed to self-pollinate, what are the possible genotypes of the offspring?

• PP, pp, pp, PP
• Pp, Pp, Pp, Pp
• Pp, PP, pp, PP
• PP, Pp, pP, pp

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NGSS.HS-LS3-1

If a plant with the genotype PP is crossed with a plant with the genotype pp, what are the possible genotypes of the offspring?

• PP, pp, pp, PP
• Pp, Pp, Pp, Pp
• Pp, PP, pp, PP
• PP, Pp, pP, pp

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NGSS.HS-LS3-1

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The mathematical chance that something will happen is known as

• possibility
• probability
• percentage
• product

An example of how several genes influence one trait is

• eye color and fur color in a white tiger
• shades of eye color in humans
• whether a pea seed is smooth or wrinkled.
• whether a pea flower is purple or white.

Tags

NGSS.HS-LS3-1

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