NEET Mnemonics
9 memory tricks · NCERT-based · NEET 2027 · Ultra High-Yield
How to use these mnemonics: Read each acronym device aloud, then trace through the letter-by-letter expansion below it. Visualise the linked concepts. Test yourself by covering the expansion and recalling from the device alone.
All 9 Mnemonics for Biotechnology: Principles and Processes
1. 3 steps of genetic modification
Mnemonic Device
I dentify → I ntroduce → M aintain ("I·I·M")
I
Identify the DNA with the desirable gene
I
Introduce the DNA into the host
M
Maintain the DNA in host + pass to progeny
2. PCR steps
Mnemonic Device
D enaturation → A nnealing → E xtension ("DAE / Dad Ate Eggs")
D
Denaturation — heat separates the two strands
A
Annealing — primers bind to single strands
E
Extension — Taq polymerase extends the primers
3. Cell-wall breaking enzymes
Mnemonic Device
B acteria–L ysozyme, P lant–C ellulase, F ungi–Ch itinase
L
Lysozyme → bacterial cells
C
Cellulase → plant cells
Ch
Chitinase → fungal cells
4. Vector must-haves
Mnemonic Device
O ri, S electable marker, C loning site ("OSC")
O
Origin of replication — controls copy number
S
Selectable marker — sorts transformants
C
Cloning site — single site for the RE
5. EcoRI decoded
Mnemonic Device
E ·co ·R ·I
E
Escherichia (genus)
co
coli (species)
R
Strain RY13
I
First enzyme isolated (order)
6. Nucleases: Exo vs Endo
Mnemonic Device
Exo = E nds, Endo = In side
Exo
Exonuclease removes nucleotides from ends
Endo
Endonuclease cuts inside the strand (restriction enzymes)
7. Blue–White selection
Mnemonic Device
Blue = Boring (no insert), White = Winner (recombinant)
Blue
β-gal active → non-recombinant colony
White
β-gal inactivated by insert → recombinant colony
8. Restriction enzyme discoverers
Mnemonic Device
A·S·N — Arber, Smith, Nathans (Nobel 1978)
A
Werner Arber
S
Hamilton Smith
N
Daniel Nathans
9. DNA runs to the +
Mnemonic Device
DNA is (−) , so it runs to the (+) anode ; small = fast
−
Phosphate backbone is negatively charged
+
Moves toward anode in electrophoresis
Frequently Asked Questions
What is a good mnemonic for Biotechnology: Principles and Processes?
"3 steps of genetic modification" — a popular device for this chapter tested in NEET.
How to memorise Biotechnology: Principles and Processes for NEET 2027 quickly?
NCERT once → use mnemonics → active recall flashcards → 20+ MCQs. This loop is fastest for retention.
How many mnemonics are there for Biotechnology: Principles and Processes?
9 curated mnemonics, covering all high-yield NEET subtopics in this chapter.
Also Study for Biotechnology: Principles and Processes