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Life Sciences: Mitosis & Meiosis

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This document provides you with all you need to know about Meiosis and Mitosis, the differences between them and how it all occurs. The notes include step by step diagrams of each process, what chromosomes are, important vocabulary and definitions, explanation of karyotyping, what and how crossing over takes place, importance of the two processes, polyploidy, mutations in sex chromosomes and much more.

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Uploaded on
February 22, 2021
Number of pages
11
Written in
2018/2019
Type
Interview
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Unknown
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COLL NUCLCOS

lno motn $uoct0nS ' lndN\dw\ segmcnrs oC chvontsmes (genes)
ccnto\n'$ne \n6 to rnoke pcteN controltrng
rnost ce\l ochvrtles
nuc\@s pyo{des nh to Yesl o$ ce\ to functnn
ocrurote\g
chromot\n netv'rorL (nterPhose)
drttused fovm oP chromosom€S
at'ot.lno rnqx.surhce fov qcttve
metoE$ltstng ce}\s'. Contqtns bNA
''.
\.- --__:} n dc\eoD\qs
"c6itir-n[
rn
V l'1 iois ; rnotecu\gs neeaed
/ t to rfi}te. nucl€tc octos
nuc\eo\qs
( suntheqse ruboscrnes
nuc\eor membrone o€
creotes q borner'ionsrsts
i iinrt msnbYones
'
nuc\eqr Pore
io,vor ercf'onge of moteYiq\s -
ix*.^ern nucYecrs t c,gtoP\osrn

rnhen ce\\ begrnS h, , C.JnromoSOmeS beCOrne Vrsibte

chromqttn con'tolnJ ,


DN\ (deoxsnbonuclerc qcd) - SH1f*$*TJr\b
contro\llng 159 cell

DNh m0\e(u\e:g:deor0v\
Protttns (hrstones) - ifrH't-1



DNA r.round
arcr-r nd hlsl ones




!nu.r.oro*e

, c I-l r0ln0 s0 rne \
conlotn tb chYomos0mes (zl porrs) nhere 4t normq\ ond 2 sex
sex ones ontq frurr{ rn
J
eqch chromosome' hos one verq lonq
- d:iJIgKA mo\ecu\Q
urhtch rs {r\ded qnd bound or-ound hrstores \
- 2'2rl, nbd{

most of cetl cyde, rnlerphose
DNA rn very \ong strqnds cotled chromqfrn
rr'rhen ce\\ pretrrq to durde '. grophose
DNA rnust ,poc[\ uP (chromotrn condenses)
thrs condensed = chrornojome

vrrthrn th.r.lor" ttto coPles qttqched
U[ cen*omira crectrnj irster chromotdl




Forhl
uac< offA tillnMd
qnd orsnKEo
R79,00
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