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Meiosis HBio

QuestionAnswer
Part of Interphase when the DNA is copied. S-phase
DNA in its condensed form. Chromosomes
A chromosome and its copy (makes an "X" shape). Sister Chromatids
Cells with two sets of chromosomes (2n). One set from mom, one set from dad. Diploid
Cells with half the number of normal chromosomes or one set of chromosomes (n). Haploid
What kind of cells go through mitosis? Somatic cells (body cells)
What kind of cells go through meiosis? Gametes (sex cells)
Name of the male gamete that's produced in the testes. sperm
Name of the female gamete that's produced in the ovaries. ovum (egg)
During fertilization, the sperm and the egg fuse together to form a _______________. Zygote
The process that produces gametes. It creates 4 haploid cells that are NOT identical. Meiosis
Meiosis in males is called Spermatogenesis
Meiosis in females is called Oogenesis
Number of sperm produced in spermatogenesis. 4
Number of cells produced in oogenesis. 4 (3 polar bodies that die, 1 egg that lives).
Pair of chromosomes that are similar in shape and size (XX - two side-by-side). Homologous chromosomes
Phase of meiosis when synapsis and crossing over occurs. Prophase I
The process of synapsis forms _______________, where homologous chromosomes come together. tetrads
Phase of meiosis where the homologous chromosomes align down the equator (middle). Also where Independent Assortment occurs. Metaphase I
Part of Prophase I where chromosomes exchange DNA to create diversity in the offspring. Crossing over
Part of Metaphase I where homologous chromosomes line up at random to create diversity in the offspring. Independent Assortment
Phase of meiosis where homologous chromosomes are separated. Anaphase I
Phase of meiosis where one cells begins to divide into two cells. Telophase I
Phase of meiosis where the nuclear envelope disappears and chromosomes condense (occuring in 2 cells). Prophase II
Phase of meiosis where sister chromatids align down the equator (middle), NOT in pairs. Metaphase II
Phase of meiosis where sister chromatids are separated apart. Anaphase II
Phase of meiosis where two cells each begin to divide into 2 daughter cells for a total of 4 cells. Telophase II
Diploid (2n) number in humans. 46 chromosomes (2 sets of 23, one set from mom, one set from dad).
Haploid (n) number in humans. 23 chromosomes (each parent will pass on 23 chromosomes to the offspring).
Created by: ballb
 

 



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