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15 Cards in this Set

  • Front
  • Back
kinetochore fibers
kinetochore fibers- extend from the kinetochore of each chromatids to centrosomes.
histones- help maintain the shape of the chromosome and aid in the tight packaging of DNA.
prokaryotic DNA
prokaryotic DNA- circular DNA
tetrad formation
tetrad formation- Chromatids of the homologous chromosomes are aligned lengthwise so that the genes on one chromosomes are adjacent to the corresponding genes on the other chromosomes.
chromatin- Less tightly coiled DBA-protein.
Haploid- only contain one set of chromosomes
diploid- have both chromosomes for a homologous pair
autosome- non sex chromosomes
karyotype- a photograph of the chromosomes.
synapsis- the pairing of homologous chromosomes.
structure of a chromosome
structure of a chromosome- A chromosome is composed of two identical chromatids attached by a centromere. Each chromatid is made up of tightly wound DNA wrapped around histones. During cell division, spindle fibers attach to the kinetochore.
role, compoisition, shape of histones
role of histones- coiling- composed of-proteins shape-DNA, rod shape
Law of Independent Assortment: What it is, when it happens, what type of nuclear division.
type of nuclear division
random separation of homologous chromosomes
metaphase 1
3 phases of Interphase and what's going on.
3 phases of Interphase and whatís going on.
G1 phase- offspring grow to a mature size
S phase- cells DNA is copied
G2 phase- cell prepares for cell division
Spermatogenesis, Oogenisis: Differences in the final product.
Spermatogenesis, Oogenisis: Differences in the final product.

difference in products of spermatogenesis (4 viable sperm), oogenesis, (1 viable egg, 3 polar bodies, unequal division)