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Midterm

NATS 1690 Study Guide - Midterm Guide: Mutation, Barr Body, Consanguinity


Department
Natural Science
Course Code
NATS 1690
Professor
Motti Anafi
Study Guide
Midterm

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Prophase Prometa Metaphas Anaphase Telophase Cytokin.
Mitosis
Asexual
Cell
Division
-Chromo. coil
-Spindle & Cellular
Poles form
-Microtubules radiate out
from poles
- Cellular
membrane
breaks down
- Microtubule
capture chrom.
At centromere
& move them
toward equator
-Chromo. Line
up at equator
- Sister
chromat.
separate
- Microtub.
pull chromo
to poles
Reverse
prophase
events when
chromo reach
poles
Cellular
Division
Meiosis
Asexual
Reprod.
(Gamete
s)
1
Chromo. Condense
-Tetrads come together
(Synopsis)
- Crossing- over of Non-
Sister Chromat.
- Chromo line
up at
metaphase
plate
- parents
move to
opposite end
of cell
Homologues
finish
migrating to
poles
- Sometimes
nuclear
envelop forms
2
Reducti
on of
chromo
#
Spindles form
Chromatids separate
Chromo. Are
aligned
Chromat.
are
separated
Separated
chromo. Reach
poles &
nuclear
envelope is
formed
Dominant:
- No carriers
-Never skips generations
- Homo or Hetero
- 1 or both alleles may be
mutated
Huntington
GOF
Trinucleotide repeat
Egg/Sperm = 50% chance for offspring
Dwarfism Dwarf parent= 50% chance of offspring
- lethal if 2 alleles are mutated
Recessive:
- Can be carrier
- must be homozygous
- can skip generations
Sickle Cell
Hemophilia - X Male infertility
males get it from mother
female will be carrier if mutated X from
father
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