Question 1
Which statement correctly describes a gene?
- The entire DNA of an organism
- A section of a DNA molecule that codes for a specific protein
- A structure in the nucleus made of many chromosomes
- A single base in a DNA molecule
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Answer: B (1)
Question 2
Describe how genes, chromosomes and the nucleus are related.
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- the nucleus contains chromosomes (1)
- genes are located on the chromosomes (1)
- each gene is a section of DNA that codes for a specific protein (1)
- allow chromosomes are made of DNA / one long DNA molecule
Question 3
In a human body cell, where are chromosomes found?
- Ribosomes
- Cell membrane
- Nucleus
- Mitochondria
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Answer: C (1)