MEIOSIS Flashcards
what is karyotype?
an individual’s collection of chromosomes.
It is a type of cell division which results in the formation of gametes with half the number of chromosomes in the body cells.
Meiosis
The fusion of a sperm and egg to form a zygote.
Fertilization
It is a fertilized egg
zygote
It is Similar to interphase of mitosis where cell increased in size
Meiosis
Cell division that reduces the chromosome number by one-half.
Meiosis I
What are the four phase in Meiosis 1
a. prophase I
b. metaphase I
c. anaphase I
d. telophase I
Longest and most complex phase (90%).
Chromosomes condense.
Crossing over occurs: homologous chromosomes come together to form a tetrad.
Prophase I
It is the foursome of chromatids that forms when replicated homologous chromosomes align
Tetrad
the pairing of two chromosomes that occurs during meiosis
Synapsis
Define Metaphase I
Shortest phase
Tetrads align on the
metaphase plate.
pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and centromere location
homologous chromosome
Homologous chromosomes separate and move towards the poles.
Anaphase I
Each pole now has haploid set of chromosomes.
Telophase I
occurs and two haploid daughter cells are formed.
Cytokinesis
