morpholino: meaning, definition, pronunciation and examples
Very LowTechnical / Scientific (Molecular Biology, Genetics)
Quick answer
What does “morpholino” mean?
A synthetic molecule used in molecular biology to block gene expression by binding to complementary RNA sequences.
Audio
Pronunciation
Definition
Meaning and Definition
A synthetic molecule used in molecular biology to block gene expression by binding to complementary RNA sequences.
A class of antisense oligonucleotide analogs used in research to inhibit the translation of specific messenger RNA (mRNA) molecules, thereby 'knocking down' gene function.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage between UK and US scientific English.
Connotations
The term is purely technical and neutral, with no regional connotations.
Frequency
Frequency is equally very low and confined to specialized literature in both regions.
Grammar
How to Use “morpholino” in a Sentence
[researchers/scientists] + [injected/used] + a morpholino + [against/to target] + [gene name/mRNA]A morpholino + [blocks/inhibits/prevents] + [expression/translation]Vocabulary
Collocations
Examples
Examples of “morpholino” in a Sentence
verb
British English
- The team will morpholino the *tyr* gene to study pigment loss.
- They attempted to morpholino the embryonic transcripts.
American English
- The lab decided to morpholino the target mRNA.
- Researchers often morpholino key genes in zebrafish models.
adverb
British English
- Not applicable; the word is not used as an adverb.
American English
- Not applicable; the word is not used as an adverb.
adjective
British English
- The morpholino-based approach proved successful.
- We observed a morpholino-induced phenotype.
American English
- They used a morpholino knockdown strategy.
- The morpholino treatment group showed significant effects.
Usage
Meaning in Context
Business
Not used.
Academic
Used exclusively in research papers, theses, and seminars within molecular biology, developmental biology, and genetics.
Everyday
Never used in everyday conversation.
Technical
The primary context. Used in laboratory protocols, research discussions, and scientific literature on gene function analysis.
Vocabulary
Synonyms of “morpholino”
Strong
Neutral
Weak
Vocabulary
Antonyms of “morpholino”
Watch out
Common Mistakes When Using “morpholino”
- Using it as an uncountable noun (e.g., 'We used morpholino'). Correct: 'We used a morpholino' or 'We used morpholinos'.
- Pronouncing it with the stress on the first syllable (/ˈmɔːrfəlɪnoʊ/). Correct stress is on the second syllable.
- Confusing it with siRNA (small interfering RNA), which is a different knockdown technology.
FAQ
Frequently Asked Questions
No. Morpholinos are antisense oligonucleotides that temporarily block translation of existing mRNA. CRISPR is a system for permanently editing the DNA sequence itself.
While primarily a research tool, some morpholino-based drugs (like eteplirsen for Duchenne muscular dystrophy) have been developed and approved, showing therapeutic potential.
They can be easily microinjected into early embryos, providing a rapid and transient way to knock down gene function during development without altering the genome.
It describes the specific, non-ionic chemical linkage between the morpholino subunits. This makes PMOs stable, resistant to degradation, and reduces non-specific charge-based interactions in cells.
A synthetic molecule used in molecular biology to block gene expression by binding to complementary RNA sequences.
Morpholino is usually technical / scientific (molecular biology, genetics) in register.
Morpholino: in British English it is pronounced /mɔːˈfɒlɪnəʊ/, and in American English it is pronounced /mɔːrˈfɑːlɪnoʊ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. The term is not used idiomatically.”
Learning
Memory Aids
Mnemonic
Imagine a MORPHing (changing shape) LINOleum floor that BLOCKS a door (gene expression). MORPHO-LINO blocks the message.
Conceptual Metaphor
A MORPHOLINO is a KEY that fits into a specific LOCK (mRNA sequence) to JAM THE LOCK and prevent the message (protein instructions) from being read.
Practice
Quiz
What is the primary action of a morpholino in molecular biology?