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Glossary of DNA and Cell Division

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What are diploid cells?
two sets of choromosomes somatic cells
haploid cells
gametes, one of each chromosome
What are the phases of mitosis?
IPMAT
What are the phases of meiosis?
IPMATPMAT
Mitosis is similar to Meiotic division ____?
2
Synapsis and _______ happens in _______ 1
crossing over , prophase,
During Metaphase I , chromosomes made ______
tetrads
Types of asexual repro
binary fission, budding, vegetative propagation
What are the purines?
AG
What are the pyrimidines?
GC
# of H bonds
2 AG, 3 GC
What happens during replication?
helicase unwinds DNA, polymerace proofread and pastes nucleotide from 5-3
ligase
links Ogasaki strands
Transcription initiation
polymerace binds to TATA box of promoter and ends in the Termination site
Termination Transcription
excise of introns, 5 G cap and poly A tail
How is the amino acid on the tRna?
enzyme reaction
T site of ribosome?
tRNA first lands
A site
tRNA anticodon binds to mRNA codon
P site
tRna adds to aa to growing polypeptide chain
Translation intiation complex
small unit, Met AUG
Termination Translation
stop codon
polyribosome
more than 1 ribosome on a mRNA
E site
tRNA leaves
What are the elongation factors?
protein direct correct tRNA to the A site , GTP
DNA vs. RNA
deoxiribose, double stranded, thymine, can't leave nucleus vs. ribose, single stranded, uracil, leave nucleas not permanent
codon
mRNA
anticodon
tRNA

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