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Biology Chapter 11-4

Terms related to meiotic cell division.

zygote fertilized egg
haploid half of the chromosome number
sex chromosome XX for females, XY for males
tetrad four chromatids formed during meiosis
allele form of a gene
autosomes chromosomes #1-22, Determine Traits
meiosis produces 4 different haploid gametes
genes determines traits
trait feature or characteristic
homologous chromosomes corresponding chromosomes, one from each parent
crossing over exchange of alleles
fertilization when egg meets sperm
gamete sperm or egg cell
chromosome threadlike structure, contains DNA
diploid full set of chromosomes
prophase I variation phase, crossing over occurs
anaphase I homologous pairs separate
anaphase II sister chromatids separate
Created by: Mrs.Benc