Test Flashcards

(34 cards)

1
Q

Which sex cells are NOT formed during meiosis?

A

Somatic cells

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2
Q

Which letter in the diagram correspond to cells that are haploid?

A

B and C

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3
Q

Consider the cell labeled X in figure 12-1 containing 4 chromosomes. Which of the 4 cells below it represents a healthy gamete that could be produced from this cell?

A

A

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4
Q

During which phase of meiosis do homologous pairs of chromosomes line up next to one another along the equator?

A

Meta phase 1

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5
Q

The typical human body cells contain 46 chromosomes. How many chromosomes are found in a typical human sperm?

A

23

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6
Q

Crossing over would most likely occur during which stage of the cell cycle?

A

When homologous chromosomes line up in pairs.

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7
Q

Which event during meiosis leads to a reduction in chromosome number from 2n to n?

A

Homologous chromosomes travel to opposite sides of the cell

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8
Q

A gamete has one-half the number of chromosomes of a regular body cell?

A

True

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9
Q

Homologous chromosomes are 2 chromosomes are 2 chromosomes with identical DNA base sequences?

A

False

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10
Q

During meiosis, chromosome number is reduced through 3 rounds of cell division?

A

False

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11
Q

During meiosis 1 homologous chromosomes pairs are separated when the centromeres split apart?

A

False

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12
Q

Meiosis occurs during both sexual reproduction and asexual reproduction?

A

False

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13
Q

What is the role of the spindle fibers?

A

To move chromosomes in the cell

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14
Q

Which stage of meiosis is represented in figure 12.2?

A

Meta phase 2

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15
Q

The distruption of chromosomes in 1 type of cell division is shown in the diagram above. Which process is being represented in a diagram?

A

Meiosis

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16
Q

Compared to the number of chromosomes contained in a body cell how many chromosomes would normally be contained in a gamete?

17
Q

In which phase of meiosis would certain gene segments of the homologous pairs of chromosomes “cross-over” and exchange genetic information?

18
Q

Two similar chromosomes that you inherit from your parents are called?

A

Homologous chromosomes

19
Q

Which event takes place during Ana phase 2 of meiosis?

A

Sister chromostids separate

20
Q

Somatic cells in human contain ____ chromosomes and an example is _____?

A

46 ; Heart cells

21
Q

Chromosomes line up in the middle of the cell single file during which phase?

22
Q

Alligator has 16 chromosomes. How many should be present in a cell of same alligator?

23
Q

What is occurring in A and B?

A

Meiosis and Fertilization

24
Q

Haploid corn cells?

25
Mosquito has 3 chromosomes, haploid/diploid?
Haploid
26
Why is it important that gamete cells have 1 set of chromosomes?
27
Explain the difference between the purpose of mitosis and meiosis?
Mitosis is a type of cell division for somatic cells and Meiosis is the type of cell division for the production of gametes in sexual reproduction.
28
List 2 things a karyotype can show?
Gender and if there is a disorder or a problem.
29
Creates gametes
Meiosis
30
Includes 2 divisions
Meiosis
31
Creates cells with a haploid number of chromosomes
Meiosis
32
Daughter cells are identical to parent cells
Meiosis and Mitosis
33
Crossing over occurs
Meiosis
34
DNA replication
Mitosis