Meiosis Flashcards
____ is the process by which a single cell divides into two or more daughter cells.
Cell division
What are the fundamental process in biology?
growth, repair and reproduction
What are the two main mechanisms of cell division?
mitosis and meiosis
It is where single cell divides into two identical daughter cell.
Mitosis
A single cell that divides into four different daughter cell. It is critical for sexual reproduction, as it allows for the production of gametes.
Meiosis
Its structure are made from DNA sequences and proteins found at the ends of chromosomes
Telomere
A constricted region of a chromosome wherein the spindle fiber will attach itself to it
Centromere
It is known as the organized package of DNA in nucleus
Chromosome
It is two identical halves of a chromosome that has been replicated in preparation for cell division
Chromatids
___ are cylindrical organelles found in eukaryotic cell that are involved in the organization of cell division
Centrioles
A ____ is a small organelle found in eukaryotic cells, which functions as a microtubule-organizing center
Centrosome
The ____ are microtubules that separates the chromosome into two daughter cells
Spindle fiber
It is a cell that have pairs of chromosomes
Diploid cells
It is a cell that has only one chromosome
Haploid
Diploid : 2n
Haploid : ___ ?
n
body cells are diploid cells meanwhile ___ ___ are haploid cells
Sex cells
Give the importance of meiosis
Reproduction and genetic diversity
it is when meiosis ensures that all organisms produced via sexual reproduction
Reproduction
this is why meiosis also produces genetic variation by way of the process of recombination
Genetic diversity
Meiosis involves how many divisions?
two divisions
There are two division phases, these are called ____?
Meiosis I and Meiosis II
During this phase, the reproductive cell grows,copies or duplicates its chromosomes.
Interphase
Body cells : Somatic
Sex cells : ___ ?
Gametes
It is a phenomena when two homologous combined; it only happens in meiosis
Synapsis
What do you call a group of four sister chromatids that is formed during synapsis?
Tetrad
It is when the alleles of the two homologous chromosomes are exchanged or recombined
Crossing-over
During Anaphase I, what is the thing that is separated?
Homologous chromosome
During Anaphase II, what is the thing that is separated?
Sister chromatids
Mitosis : 2 daughter cells
Meiosis : _ daughter cells
4
If there are 46 chromosomes during prophase, how many chromosomes would be after anaphase?
46
If there are 72 chromosomes during prophase I, how many chromosomes would be during telophase?
36
If there are 72 chromosomes during prophase II, how many chromosomes would be during telophase?
72
What are the gametes?
Sperm cell and egg cell
