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GENETICS I
For Prelim I - lec 2,3
20
Biology
Undergraduate 3
02/15/2012

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Term
karyotype
Definition
complete set of chromosomes in cell of an individual
Term
centromere
Definition
constricted region on chromosome;
attachment point for spindle microtubules
Term
kinetochore
Definition
a protein complex that assembles on the centromere as the point of attachment for spindle microtubues
Term
spindle microtubules
Definition
responsible for moving chromosomes during cell division
Term
pair of telomeres
Definition
unique protein-DNA structure located at the end of linear chromosomes
Term
In preparation or cell division, chromosomes replicate into 2 initially identical sister chromatids: __ chromosome(s) and __ DNA molecule(s)
Definition
1 chromosome, 2 DNA molecules
Term
duplicated or replicated chromosome
Definition
dyad
Term
[image]
Definition
metacentric
Term
[image]
Definition
submetacentric
Term
[image]
Definition
acrocentric
Term
[image]
Definition
telocentric
Term
karyokinesis
Definition
nuclear division
Term
G1 Phase
Definition
cell growth, organelles
Term
S phase
Definition
DNA synthesis
Term
G2 phase
Definition
preparation for cell division
Term

Mitosis

(ProProMetaMetaAnaTelo/Cyto)

Definition

prophase

pro-metaphase

metaphase

anaphase

telophase & cytokinesis

Term
Interphase includes:
Definition
G1, S phase, G2, mitotic phase
Term
genetics:
Definition
"the study of heredity through variation"
Term
Meiosis I vs Meiosis II
Definition

MI : separates dyad homologous chromosomes

 

MII: separates sister chromatids

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