Mitosis, Meiosis, Cancer Test

15 terms by mintcandy220 

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mitosis

nuclear division mechanism that occurs in somatic cells of multi-celled eukaryotes

meiosis

nuclear division mechanism that forms gametes or spores; basis of sexual reproduction; divides parental chromosome number in half

sister chromatid

one of two attached members of a duplicated chromosome

centromere

in chromosome the constricted region where microtubules of spindle bind

bipolar spindle

dynamic network of microtubules that grow from opposite poles of the cell

diploid

having two of each type of chromosome characteristic of the species

centrosome

includes two centrioles; two of them move to opposite poles of nucleus and pull apart sister chromatids

asexual reproduction

all offspring inherit the name number and kinds of genes from a single parent

sexual reproduction

involves meiosis; forms mature reproductive cells called gametes; then fertilization

genes

sequences of DNA that encode heritable information about traits

allele

arise by mutation and encode slightly different versions of the same trait

gametes

mature reproductive cells formed by meiosis of germ cells

homologous

pairing at meiosis and having the same structural features and pattern of genes; same length, shape, and genes

haploid

having one of each type of chromosome characteristic of the species

crossing over

process where chromosome and its homologous partner exchange corresponding segments

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