Home
Explore
Exams
Search for anything
Login
Get started
Home
Business
Finance
Banking & Regulation
Meiosis
5.0
(1)
Rate it
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Card Sorting
1/37
Earn XP
Description and Tags
Finance
Banking & Regulation
Doctorate
Add tags
Study Analytics
All
Learn
Practice Test
Matching
Spaced Repetition
Name
Mastery
Learn
Test
Matching
Spaced
No study sessions yet.
38 Terms
View all (38)
Star these 38
1
New cards
Gametes are
haploid
2
New cards
Somatic cells are
diploid
3
New cards
somatic cells
body cells
4
New cards
Number of chromosomes in diploids
46
5
New cards
Number of chromosomes in haploids
23
6
New cards
Diploid cells contain
Two sets of homologous chromosomes
7
New cards
Haploid cells contain
One set of chromosomes and half the genes from each parent cell
8
New cards
Homologous chromosomes
set of cells which comes from male and female parent cells
9
New cards
What type of cell division happens most of the time?
mitosis
10
New cards
When does meiosis happen?
sexual reproduction
11
New cards
Number of rounds (meiosis)
2
12
New cards
Goal of meiosis
For 1 diploid cell to become 4 haploid cells
13
New cards
Crossing over
Process in which homologous chromosomes exchange portions of their chromatids during meiosis.
14
New cards
Alleles
Different forms of a gene
15
New cards
How must the alleles be in crossing over?
aligned
16
New cards
Result of crossing over
genetic diversity and 4 different chromosomes
17
New cards
Oogenisis
Production of mature egg characterized by an unequal cytokinesis
18
New cards
Phases of Meiosis 1
Interphase, Prophase 1, Metaphase 1, Anaphase 1, Telophase 1, Cytokinesis
19
New cards
Phases of Meiosis 2
prophase 2, metaphase 2, anaphase 2, telophase 2, cytokinesis
20
New cards
What happens in Prophase 1
Duplicated chromatin forms into sister chromatids. Tetrads form and crossing over occurs. Spindle fibers are created.
21
New cards
What happens in Metaphase 1
Chromosome pairs line up in the center. Spindle fibers attach themselves to the chromosomes.
22
New cards
What happens in Anaphase 1?
Spindle fibers pull homologous chromosomes to opposite sides of the cells
23
New cards
What happens in Telophase 1 and Cytokinesis?
Nuclear membrane forms. Spindle disassembles. The cell splits into two cells with 46 chromosomes
24
New cards
What happens in Prophase 2?
2 haploid daughter cells with 46 chromosomes each are introduced from Meiosis 1. New spindle fibers are created.
25
New cards
What happens in Metaphase 2?
Chromosomes line up in the middle of the cell. Spindle fibers attach to centromeres.
26
New cards
What happens in Anaphase 2?
Sister chromatids are pulled apart and move to opposite sides of the cell.
27
New cards
What happens in Telophase 2 and Cytokinesis?
Spindle fibers disassemble. Two cells each split and 4 haploid cells are made with 23 chromosomes.
28
New cards
Zygote
fertilized egg
29
New cards
Tetrad
Homologous pair of chromosomes each made up of 2 chromatids. Required for crossing over
30
New cards
Variable(s) for diploids
2n
31
New cards
Variable(s) for haploids
n
32
New cards
Polar bodies
The 3 additional haploid cells that will not be fertilized and were created during the creation of an oocyte
33
New cards
Oogenesis
the production, growth, and maturation of an egg, or ovum
34
New cards
Spermatogenesis
production of sperm
35
New cards
synapsis
the process of pairing homologous chromosomes
36
New cards
fertilization
when a sperm and egg combine
37
New cards
homologous
matching chromosomes
38
New cards
What happens in interphase
the cell’s chromosomes duplicate