During meiosis I, what happens?

Homologous chromosomes are split

None of the other choices are correct

Crossing over is important because....

It allows for more genetic diversity of gametes.

It prevents mutations from entering the gametes.

It allows for even distribution of chromosomes in the gametes.

It allows for genetic uniformity of gametes.

one-half of a set of chromosomes

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

Meiosis results in ______.

4 genetically distinct haploid gametes

Which of the following statements about homologous chromosomes is correct?

They have genes from the same traits at the same loci.

They are found in animal cells but not in plant cells.

They are found in haploid cells.

They are found in the cells of human females, but not in human males.

Which of the following is a function of mitosis in humans?

decreasing the number of chromosomes

Which of the following shows the correct sequence of the cell cycle?

G1->S->G2->mitosis->cytokinesis

Mitosis-> G1->S->G2->cytokinesis

S->G1-> G2-> mitosis-> cytokinesis

cytokinesis->mitosis->G1->S->G2

You cross a purple-flowered plant with a white-flowered plant. What must be true?

The purple parent was heterozygous

The purple parent was homozygous

Australian shepherd dogs can have a solid coat color (mm) or a mixed pattern coat color called merle (Mm). The homozygous dominant coat color is called a lethal white (MM) which produces pups that are deaf and blind. The Australian Shepherds of America Club discourages from mating two merles. Which of the following best explains why merle-to-merle matings are undesirable?

The cross has a 25% chance of producing homozygous dominant pups.

The cross has the probability of producing litters with 50% solid coat color pups.

The cross produces all homozygous recessive pups

The cross has the probability of producing litters with 25% merle coat pups.

When there are multiple genes that affect a trait.

X-linked traits (same as sex-linked)

In a sex-linked inheritance pedigree you would expect to see

an equal number of affected males and females

In the ABO blood type system,

A, B, and O are incompletely dominant.

O is incompletely dominant to A and B.

A woman has blood type AB. From this, we can infer that

neither of her parents was type O.

her mother was also blood type AB.

her father was also blood type AB.

her mother was type A, and her father was type B.

A man has blood type O. From this, we can infer that

none of his children can be type AB.

at least one of his parents must be type O.

AP Biology Unit 5 Heredity

Authored by Jennifer Faulknor

Biology

12th Grade

46 Questions

NGSS covered

Used 513+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _ chromosomes.

23, 46

46, 23

2, 4

50, 100

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What kind of cells are made in MEIOSIS?

Haploid Gametes

Diploid Somatic Cells

Skin Cells

Liver Cells

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

20 sec • 12 pts

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 homologous chromosomes match up, they form a structure call a ___________.

tetrad

triad

diploid

gamete

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

160

Tags

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a stem cell has 24 chromosomes, how many will it have at the end of meiosis?

the number varies per species

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The purpose of meiosis is to form ________ cells.

body

sex

somatic

brain

Tags

NGSS.HS-LS3-2

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AP Biology Unit 5 Heredity

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

What kind of cells are made in MEIOSIS?

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

When homologous chromosomes match up, they form a structure call a ___________.

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

If a stem cell has 24 chromosomes, how many will it have at the end of meiosis?

The purpose of meiosis is to form ________ cells.

Crossing over helps promote

During meiosis I, what happens?

Crossing over is important because....

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Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _ chromosomes.