Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

General Biology > Meiosis > Flashcards

Meiosis Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

A type of cell division where the sex cells divides and reduces to produce 4 gamete cells.

A

Meiosis

  • Meiosis is SEXUAL reproduction
  • Includes TWO divisions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It is the reproductive cell of an animal or plant.

A

Gametes

  • Female; Egg cell / Oogenesis
  • Male; Sperm cell / Spermatogenesis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a cell containing two copies of each chromosome?

A

Diploid

(2n)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a cell containing a single set of chromosome?

A

Haploid

(n)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What type of cell contains half the number of chromosomes?

A

Gamete

  • Female; Egg cell / Oogenesis
  • Male; Sperm cell / Spermatogenesis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does meiosis occur?

A

Gonads

  • Testes
  • Ovaries
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How many phases does meiosis have?

A

8

  • 4 phases in Meiosis I
  • 4 phases in Meiosis II
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When does the homologous chromosomes seperate?

A

Meiosis I

Produces two haploid cells, each containing one chromosome from the homologous pair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When does the sister chromatids seperate?

A

Meiosis II

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the group of four sister chromatids in paired homologous chromosomes?

A

Tetrad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the pairing of homologous chromosomes called?

A

Synapsis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It is the recombination of alleles or genetic material in homologous chromosomes.

A

Crossing-over

  • Happens during Prophase I (Pachytene)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the different versions of the same gene on each chromosome called?

A

Allele

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the pair of chromosomes similar in shape and size called?

A

Homologous Chromosome

  • Maternal and Paternal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many pairs of homologous chromosomes does a human have?

A

23 Pairs

  • 22 pairs Autosomes (body)
  • 1 pair Sex chromosomes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

It is the the point of contact between two non-sister chromatids.

A

Chiasmata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What may occur between
non-sister chromatids at sites called chiasmata?

A

Crossing-over

  • Causes Genetic Recombination
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the longest and most complex phase in meiosis?

A

Prophase I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What stage does the chromosome starts to condense.

A

Leptotene

Prophase I (1st Stage)

20
Q

What is the fertilized egg cell that results from the union of a female gamete with a male gamete?

A

Zygote

21
Q

It is the phase where the cell duplicates its DNA.

A

Interphase

Can be found both in Mitosis and Meiosis

22
Q

It is the phase where the sister chromatids can be clearly seen.

A

Prophase I

First Phase of Meiosis I

23
Q

It is the phase where the Nucleus & Nucleolus disappear.

A

Prophase I

First Phase of Meiosis I

24
Q

It is the phase where the spindle fiber forms.

A

Prophase I

First Phase of Meiosis I

25
Q

It is the phase where Tetrads form & Crossing over Occurs

A

Prophase I

First Phase of Meiosis I

26
Q

It is the phase where Chromosomes coil & Synapsis occurs.

A

Prophase I

First Phase of Meiosis I

27
Q

Which phase is the shortest in Meiosis?

A

Metaphase I

Second Phase of Meiosis I

28
Q

At which stage does the chromosomes begin to pair of?

A

Zygotene

Priphase I (2nd Stage)

29
Q

At which stage does crossing over happen?

A

Pachytene

Prophase I (3rd Stage)

30
Q

At which stage does the chromosome begin to uncoil?

A

Diplotene

Prophase I (4th Stage)

31
Q

It is the stage where the homologous chromosomes continue to separate.

A

Diakinesis

Prophase I (5th Stage)

32
Q

How many substages does Prophase I have?

A

5

  1. Leptotene
  2. Zygotene
  3. pachytene
  4. Diplotene
  5. Diakinesis
33
Q

In which phase does the homologous chromosomes (or tetrads) align on the equitorial plate (or equator)?

A

Metaphase I

34
Q

It is the central plane of the spindle in dividing cell, to which chromosomes migrate during the metaphase of Mitosis or Meiosis.

A

Equitorial Plate

35
Q

It is when Independent assortment occurs where the chromosomes separate randomly causing Genetic Recombination.

A

Metaphase I

36
Q

In which stage does the Homologous Chromosomes separate and move towards the opposite poles.

A

Anaphase I

Sister Chromatids remain attached at their centronomes

37
Q

It is when each pole now has a haploid set of chromosomes.

A

Telophase I

38
Q

Which meiosis is a process of reduction of chromosome?

A

Meiosis I

39
Q

Which division separates the chromosomes into two chromatids?

A

Meiosis II

40
Q

This stage has no interphase and no DNA replication.

A

Meosis II

41
Q

Which stage in Meiosis is very similar to Mitosis?

A

Meiosis II

42
Q

It is the phase in meiosis where the Nucleus & nucleolus disappear, chromosomes condense, and spindle forms.

A

Prophase II

43
Q

It is the phase in Meiosis where chromosomes (not homologous) line up at equator.

A

Metaphase II

44
Q

It is the phase in Meiosis where Nuclei & Nucleoli reforms and the spindle fiber disappears.

Produces 4 Haploids

A

Telophase II

45
Q

It is the fusion of sperm and egg cell to form a zygote.

A

Fertilization

  • Egg (n = 23) ; Zygote (n = 46)
  • Sperm (n = 23)

General Biology (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions