Heredity

In pea plants, the allele for tall is dominant (T) and the allele for short is recessive (t); the allele for yellow seeds is dominant (Y) and the allele for green seeds is recessive (y).
A cross between two plants that are TtYy will result in how many offspring that have the SAME genotype as the parents?

• 1 out of 16
• 3 out of 16
• 4 out of 16
• 9 out of 16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A round watermelon is crossed with a long watermelon and all the offspring are oval. If two oval watermelons are crossed, what is the percent of watermelons that will be round?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-3

A round watermelon is crossed with a long watermelon and all the offspring are oval. This is an example of...

• codominance.
• incomplete dominance.
• sex-linkage.
• multiple alleles.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A child is born with blood type O. All of the following could be the blood type of the parents EXCEPT...

• A and B
• A and A
• O and O
• AB and O

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The expression of both alleles for a trait in a heterozygous individual is called...

• sex-linkage.
• epistasis.
• codominance.
• incomplete dominance.

A couple has 6 children, all girls. If the mother gives birth to a 7th child, what is the probability that the seventh child will be a girl?

• 7 out of 7
• 6 out of 7
• 1 out of 2
• 1 out of 7

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NGSS.HS-LS3-3

A male who has a sex-linked allele will pass it on to...

• all his daughters.
• all his sons.
• 1/2 his daughters.
• 1/2 his sons.

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NGSS.HS-LS3-1

The passing of DNA from parents to offspring is called...

• generation.
• heredity.
• inheritance.
• traits.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Chromosomes are found in the __________ of a eukaryotic cell.

• chloroplast
• nucleus
• cytoplasm
• mitochondria

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is a gene?

• an entire chromosome that codes for a trait
• a piece of clothing
• a piece of a DNA on chromosome that codes for a trait
• chemical messengers in your brain that code for a trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS1-1