Biology Definitions - Chapter 6

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one of the two identical copies of a chromosome, joined at the centromere prior to dell division
chromatid
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specialised region of a chromosome where two chromatids join and to which the microtubules of the spindle attach at cell division
centomere
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having two complete sets of chromosomes
diploid
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having one complete set of chromosomes
haploid
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a chromosome pair consisting of one maternal and one paternal chromosome
homologous pair
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a type of cell division in which the two daughter cell have the same chromosome number and are genetically identical to each other and the parent cell
mitosis
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a gene with the potential to cause cancer
oncogene
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a two-stage cell division in sexually reproducing organisms that produces 4 genetically distinct daughter cells that have half the number of chromosomes of the parent cell
meiosis
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the site as seen in the light microscope, at which chromosomes exchange DNA in crossing over
chiasma
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either of a pair of homologous chromosomes moves to either pole at anaphase 1 of meiosis, independently of the chromosomes of the other homologous pairs
independent assortment
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Other cards in this set

Card 2

Front

specialised region of a chromosome where two chromatids join and to which the microtubules of the spindle attach at cell division

Back

centomere

Card 3

Front

having two complete sets of chromosomes

Back

Preview of the front of card 3

Card 4

Front

having one complete set of chromosomes

Back

Preview of the front of card 4

Card 5

Front

a chromosome pair consisting of one maternal and one paternal chromosome

Back

Preview of the front of card 5
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