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efrain12
on FreezingBlue Flashcards.
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Chromosome (2)
structure made up of DNA and proteins
- -carries the cells heriditary information
- *genes
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sex chromosome
- chromosome asosciated with an individuals sex
- *XY
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autosome
a non-sex chromosome
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unreplicated chromosome
chromosome that consists of a single copy
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replicated chromosome (2)
-a chromosome that has been copied
-consists of two linear structures joined at the centromere
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sister chromatids
the chromosome copies in a replicated chromosome
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Homologous chromosomes
- in a diploid organism, chromosomes that are similar in size,shape, and gene content
- *one from dad and mom
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non sister chromatids
- chromosome copies in homologus chromosomes
- *not alike
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tetrad
homologous chromosomes that are joined together
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haploid number
- number of differnt types of chromosomes in a cell
- *n
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diploid number
- number of chromosomes present in a diploid cell
- *2n
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ploidy (2)
-number of each type of chromosome present
-equivalent to the number of haploid chromosome sets present
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(ploidy) haploid
- having one of each type of chromosome
- *n
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(ploidy) Diploid
- having 2 of each type of chromosome
- *2n
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(ploidy) Polyploid
- having more than 2 of each type of chromosome
- *3n=triploid
- *4n= tetraploid
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