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Meiosis

QuestionAnswer
Meiosis. The process of creating haploid gametes
Crossing-over why siblings have the same parents’ chromosomes, but a different combination of genes.
Prophase I- homologous chromosomes pair up into tetrads and cross over
Metaphase I- homologous chromosomes line up in pairs along the middle of the cell
Anaphase I- homologous chromosomes separate
Telophase I- homologous chromosomes reach the ends of the cell
meiosis involves 2 cell divisions resulting in 4 daughter cells
biological sex determined by a pair of inherited sex chromosomes known as the X and Y chromosomes:
During fertilization (joining of egg and sperm) egg contributes an X but the sperm may contribute an X or Y.
Genes found on the sex chromosomes are called sex-linked traits.
A pedigree a graphic representation of an individual’s family tree, which allows scientists to see inheritance patterns.
XX female
XY male
Created by: Studiostaff
 

 



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