DNA and protein synthesis
18 review questions with answers for DNA and protein synthesis. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Shape of a DNA molecule?
- Double helixRight answer
- Single helix
- Pleated sheet
- Straight chain
What this set covers
DNA structure and the path from gene to protein run through this set: the double helix, complementary base pairing, hydrogen bonds, codons, transcription, translation, mRNA, tRNA, mutations, and the Watson and Crick model of 1953.
- Common mix-up
- Students often mix up transcription and translation: transcription copies a gene into mRNA in the nucleus, while translation reads the mRNA at a ribosome to build a polypeptide.
- Review tip
- Take a short DNA sequence, write its complementary strand, transcribe it into mRNA, split it into codons, then check each step against the base pairing rules.
All 18 questions and answers
Shape of a DNA molecule?
Answer: Double helix
Base that pairs with adenine in DNA?
Answer: Thymine
Base that pairs with guanine in DNA?
Answer: Cytosine
Number of different bases in DNA?
Answer: 4
Term for the base pairing rule, A with T and C with G?
Answer: Complementary
Weak bonds between base pairs that hold the two strands together?
Answer: Hydrogen bonds
A DNA sample is 20% adenine. What percentage is guanine?
Answer: 30%
Section of DNA that codes for a specific protein?
Answer: Gene
Entire set of genetic material of an organism?
Answer: Genome
Number of bases that code for one amino acid?
Answer: 3
Group of three mRNA bases that codes for one amino acid?
Answer: Codon
Copying the base sequence of a gene into mRNA?
Answer: Transcription
Main location of transcription in a eukaryotic cell?
Answer: Nucleus
Reading mRNA at a ribosome to build a polypeptide?
Answer: Translation
Molecule that carries a copy of the genetic code from the nucleus to the ribosomes?
Answer: mRNA
Molecule that brings specific amino acids to the ribosome?
Answer: tRNA
Random change in the base sequence of DNA?
Answer: Mutation
Scientists who published the double helix model in 1953, using Rosalind Franklin's X-ray image?
Answer: Watson and Crick
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options were written for that question.