Types of Mutations
- Created by: NinaHoward
- Created on: 19-11-19 16:13
Other questions in this quiz
2. How does hypermethylation cause tumours?
- The tumour suppressor cells produce too much of the protein for cell division causing uncontrollable growth of tumours
- The proto-oncogenes do not produce enough of the protein which slows down cell division meaning cell division becomes rapid and uncontrollable.
- Transcription cannot happen when tumour suppressor genes are hypermethylated which means proteins for slowing down cell division aren't made. This causes uncontrollable cell division and tumours develop
- The proto-oncogenes act as oncogenes meaning the proteins for cell division are over-produce. This causes uncontrollable cell division
3. What is a substitution mutation?
- Where one or more bases are removed
- Where one or more bases are swapped for another
- Where a sequence of bases are reversed
- Where one or more bases are repeated
4. How does oestrogen cause breast cancer?
- Oestrogen causes cell division
- Oestrogen stimulates meiosis
- Oestrogen stimulates cell division
- Oestrogen suppresses cell division
5. What is a mutation?
- A change to the nucleotide sequence of DNA
- A change to the nucleotide sequence of DNA
- A mistake in the sequence of bases
- A change in the tertiary structure of a protein
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