Unlike Mendel's experiments, when a very tall person and a very short person mate, the children are variable in height. Why is one trait (tall or short) not dominant over the other?

human height is controlled by multiple genes

the gene for height in humans has incomplete dominance

the gene for height has multiple co-dominant alleles

height in not controlled by genes in humans

One of the main reasons genes assort independent of one another is that

they are on different chromosomes.

they are on the same chromosome

In humans, if a non-disjunction event leads to an individual that is XXY, they would

be male because they have a Y chromosome

be female because they have 2 X chromosomes

have both male and female characteristics

If a particular pedigree follows a sex-linked recessive trait, you would expect to see

an equal number of affected males and females

In humans, hemophilia is an X-linked recessive trait. If a man and a woman have a son who is affected with hemophilia, which of the following is definitely true?

The mother carries an allele for hemophilia

The father carries an allele for hemophilia

The father is afflicted with hemophilia

both parents carry an allele for hemophilia

The red and blue pair of chromosomes in the bottom row are

carrying the same genes, but different alleles

carrying completely different genes

carrying the same genes and the same alleles

Which type of chromosome mutation is this (use image) and why?

Inversion, because the genes of the same chromosome are switched to opposite orders

Inversion, because the genes are switching places with those of another chromosome

Translocation, because the genes are switching places with those of another chromosome

Translocation, because the genes of the same chromosome are switched to opposite orders

X-linked conditions are more common in men than in women because

Men need to inherit only one copy of the recessive allele for the condition to be fully expressed

The genes associated with the X linked conditions are linked to the X chromosome, which determines maleness.

Women simply do not develop the disease regardless of their genetic composition

The sex chromosomes are more active in men than in women

Which of the following best explains why the chromosome number is an even number in organisms?

The diploid chromosome number represents pairs of chromosomes, one from ech parent, so that it is always an even number

It is only by coincidence, many organisms have an odd number

The diploid number is always even so that when mitosis occurs each cell gets the same number of chromosmes

Chromosomes double very time the cell divides, so after the first division, the number is always even

How would the DNA in a horse muscle cell compare with the DNA in a horse sperm cell?

The sperm cell would have half as much DNA as the muscle cell.

The sperm cell would have twice the DNA as the muscle cell.

The sperm cell and muscle cell would contain the same amount of DNA.

The muscle cell would have four times the DNA as the sperm cell..

Which of the following best describes meiosis?

It occurs only in cells in the reproductive structures of an organism

It is carried out in all tissues theat require cell replacement

It happens in all of the tissues except the brain and spinal cord

It is the first stage of mitosis

Which of the following contributes to genetic variation in sexually reproducing species?

random fertilization, independent assortment, crossing over

crossing over, internal fertilization, independent assortment

independent assortment, spindle formation, random fertilization

random fertilization, DNA synthesis, independent assortment

internal fertilization, spindle formation, crossing over

The major contribution of sex to evolution is that __________.

it provides a method to increase genetic variation.

it is the only mechanism for species to reproduce.

it provides a way in which somatic mutations can be inherited.

it provides a method to increase genetic variation and it provides a way in which somatic mutation can be inherited.

it is the only mechanism for species to reproduce and it provides a method to increase genetic variation.

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Ap Biology Heredity Review

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Biology

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11th - 12th Grade

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Practice Problem

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Medium

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NGSS

HS-LS3-2, HS-LS3-1, HS-LS3-3

Standards-aligned

Lisa Short

Used 5+ times

FREE Resource

40 questions

Show all answers

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Imagine you are performing a cross involving seed color in garden pea plants. What F₁ offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.

100 percent yellow-green seeds

100 percent yellow seeds

50 percent yellow, 50 percent green seeds

25 percent green, 75 percent yellow seeds

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

dominance

codominance

multiple alleles

incomplete dominance

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A recessive trait will be observed in individuals that are ________ for that trait.

heterozygous

homozygous or heterozygous

homozygous

diploid

Tags

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Meiosis results in ______.

4 genetically distinct haploid gametes

2 genetically distinct cells

2 genetically identical cells

4 genetically identical cells

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chromosomes that pair up during meiosis, are called __________ chromosomes.

homozygous

asexual

homologous

genes

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs

crossing over

mutagenesis

hybridization

fertilization

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The observable outward manifestation of the genes of an individual is referred to as its

blueprint

genotype

phenotype

genetic map

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

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Ap Biology Heredity Review

40 questions

Imagine you are performing a cross involving seed color in garden pea plants. What F1 offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.

If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

A recessive trait will be observed in individuals that are ________ for that trait.

Meiosis results in ______.

The chromosomes that pair up during meiosis, are called __________ chromosomes.

When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs

The observable outward manifestation of the genes of an individual is referred to as its

Unlike Mendel's experiments, when a very tall person and a very short person mate, the children are variable in height. Why is one trait (tall or short) not dominant over the other?

One of the main reasons genes assort independent of one another is that

In humans, if a non-disjunction event leads to an individual that is XXY, they would

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Discover more resources for Biology

Imagine you are performing a cross involving seed color in garden pea plants. What F₁ offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.