Meiosis Part 1 Flashcards

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1
Q

The purpose of Mitosis (cell division) is to:

A

create more cells for the body.

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2
Q

The purpose of Mitosis (cell division) is to:
create more cells for the body.

Why do we need to do this?

A

repair, growth, replacement

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3
Q

Mitosis produces:

A

2 identical daughter cells (each with the same exact genetic information)
The cell divides once.

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4
Q

Meiosis:

A

Reproduction division in which the # of chromosomes is cut in half by separation of homologous chromosomes

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5
Q

Meiosis:
Reproduction division in which the # of chromosomes is cut in half by separation of homologous chromosomes

Why do we want to do that??

A

To create cells used in
reproduction

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6
Q

We all know that genes are carried on ____________.

A

chromosomes

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7
Q

Humans have __ chromosomes, which means they receive __ from each parent.

A

46, 23

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8
Q

Each chromosome that an individual receives from their mother has an exact match from their father (same size, carries the same traits, etc) These are called ____________ __________.

A

homologous chromosomes.

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9
Q

Diploid cells have ___ ______ __ ______ __________.

A

two sets of each chromosome.

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10
Q

Humans –> ____ = 46

A

2N

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11
Q

Haploid cells contain only ___ ___ __ ____ _______.

A

one set of each chromosome.

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12
Q

Humans –> __ = 23

A

N

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13
Q

Sex cells or ______ (sperm and egg) are the ONLY haploid cells

A

gametes

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14
Q

If 2N = 8, then N= __

A

4

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15
Q

If 2N= ___, then N=13

A

26

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16
Q

Muscle cell

A

diploid

17
Q

Skin cell

A

diploid

18
Q

Sperm cell

A
  • haploid
19
Q

Nerve cell

A
  • diploid
20
Q

Egg cell

A
  • haploid
21
Q

If cats have 19 chromosomes in each of their gametes, how many chromosomes do they have in their body cells?

A

38! N=19, 2N=38

22
Q

Through MEIOSIS!!
AKA:

A

reduction division

23
Q

This requires 2 stages

A
  1. MEIOSIS I 2. MEIOSIS II