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Biology Chapter 8.3

Biology Chapter 8.3 Terms and Definitions

TermDefinition
gamete a reproductive cell
synapsis the pairing of homologous chromosomes during meiosis
tetrad a group of two homologous chromosomes during meiosis
crossing-over the exchange of genes by reciprocal segments of homologous chromosomes during meiosis
genetic recombination formation of new combinations of alleles in offspring (viruses, cells or organisms) as a result of exchange pf DNA sequences between molecules. It occurs naturally, as in sexual reproduction or experimentally, as a result of genetic engineering
independent assortment during meiosis, the random distribution of genes from different chromosomes to the gametes
spermatogenesis the production of sperm cells
oogenesis the production of mature egg cells
polar body one of two small cells produced ad discarded during each of the two meiotic divisions that yield the haploid egg
asexual reproduction the production of offspring that does not involve the union of gametes
sexual reproduction the production of offspring from the combination of genetic material from two parent organisms
gamete a reproductive cell
synapsis the pairing of homologous chromosomes during meiosis
tetrad a group of two homologous
Created by: conoverc20
 

 



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