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Meiosis
Term | Definition |
---|---|
gametes | sex cells-sperm and egg |
oogenesis | meiosis which produces 1 egg cell |
spermatogenesis | meiosis which produces 4 sperm cells |
asexual reproduction | one organism divides into two new cells example is bacteria |
placenta | exchange of nutrients, oxygen, and removes wastes between mother and baby |
uterus | place where baby grows and develops |
testes and ovaries | place where meiosis occurs in the body |
sexual reproduction | involves two parents to produce an offspring. Example is human reproduction of sperm and egg |
homologous | paired chromosomes the form a tetrad during prophase 1 |
crossing-over | parts of homologous chromosomes exchange information and leads to genetic variation (difference) |
diploid | 2 sets of chromosomes represented by 2N found in somatic cells |
haploid | 1 set of chromosomes represented by 1N or N found in gamete cells |
somatic cells | body cells |
meiosis | process of reduction division in which the chromosome number is cut in half through 2 cell divisions |
Prophase 1 | crossing-over occurs |
Result of Meiosis | 4 different haploid cells |