Lesson T4.1.2
T4.1.2 Chromosomes, genes and DNA Quiz: KS3 Biology, Unit 4
20 questions
In partnership with Revision Ninja
Lesson T4.1.2, Chromosomes, genes and DNA: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 4: Genetics and evolution, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
What are chromosomes primarily made of?
- Starch and cellulose
- Lipids and water
- Salts and minerals
- DNA and proteins
-
Which structure in a cell contains the chromosomes?
- The cytoplasm
- The nucleus
- The vacuole
- The cell membrane
-
How are genes arranged inside a chromosome?
- Randomly floating
- Clumped at ends
- At specific positions
- In the cytoplasm
-
A model of DNA shows two strands twisted together. What is this shape called?
- A single sphere
- A double helix
- A straight rod
- A flat square
-
Which two chemical units make up the rungs of the DNA double helix?
- Sugar molecules only
- Protein chains only
- Base pairs
- Fatty acid chains
-
What is the relationship between a gene and a chromosome?
- Gene carries many chromosomes
- Chromosome carries many genes
- Genes form cell walls
- They are identical structures
-
What shape does a two-stranded DNA model represent?
- Double helix
- Triple loop
- Single strand
- Cell membrane
-
Where does each chromosome in a human chromosome pair originate from?
- Mother only
- Both parents
- One parent
- Father only
-
What are different versions of the same gene called?
- Nucleotides
- Zygotes
- Alleles
- Genomes
-
Which type of organisms have chromosomes stored inside a nucleus?
- Eukaryotes
- Viruses
- Prokaryotes
- Bacteria
-
How do all body cells in a person end up with the same genes?
- Osmosis
- Cell division
- Respiration
- Diffusion
-
Which feature of DNA allows it to be accurately copied?
- Base pairs
- Cytoplasm
- Cell walls
- Ribosomes
-
What term describes the complete set of an organism's DNA?
- Protein
- Zygote
- Gamete
- Genome
-
What part of a DNA strand carries genetic information?
- Colour of strands
- Weight of molecule
- Order of bases
- Length of nucleus
-
Which structure controls the activities of a cell by carrying genetic information?
- The nucleus
- The cell wall
- The vacuole
- The cell membrane
-
What is produced by a gene that has had its DNA sequence changed?
- Extra cell wall
- Altered protein
- New chromosome
- Larger nucleus
-
What did discovering DNA's structure help explain?
- Cell respiration
- Gravity effects
- Light absorption
- Genetic inheritance
-
What are the individual units that make up a DNA strand called?
- Carbohydrates
- Nucleotides
- Amino acids
- Proteins
-
What molecule inside the nucleus directs the making of proteins?
- Cellulose
- Starch
- Lipid
- DNA
-
What type of molecule do genes code for when they are expressed?
- Starch
- Proteins
- Cellulose
- Glucose
Related quizzes
- Heredity and genetic information Quiz · T4.1.1 · 20 questions
- The DNA model and its discovery Quiz · T4.1.3 · 20 questions
- Differences between species Quiz · T4.2.1 · 20 questions
- Continuous and discontinuous variation Quiz · T4.2.2 · 20 questions
- Natural selection and competition Quiz · T4.2.3 · 20 questions
- Adaptation, extinction and biodiversity Quiz · T4.2.4 · 20 questions
- Cells and light microscopy Quiz · T1.1.1 · 20 questions
- Photosynthesis: reactants, products and word summary Quiz · T2.1.1 · 20 questions
- Food webs and interdependence Quiz · T3.1.1 · 20 questions
- Cell parts and their functions Quiz · T1.1.2 · 20 questions