Inheritance Quiz
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5 questions, one answer each
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1. Which bases pair together in DNA?
- A. Adenine with guanine, cytosine with thymine
- B. Adenine with thymine, cytosine with guanine
- C. Adenine with cytosine, guanine with thymine
- D. Uracil with thymine, adenine with guanine
2. Where does translation take place?
- A. In the nucleus
- B. At the ribosome
- C. In the mitochondria
- D. On the cell membrane
3. A heterozygous individual (Bb) is crossed with another heterozygous individual (Bb), where B is dominant. What phenotype ratio is expected in the offspring?
- A. 1:1
- B. 1:2:1
- C. 3:1
- D. 1:3
4. Why does meiosis produce genetic variation but mitosis does not?
- A. Meiosis produces four genetically different haploid gametes, while mitosis produces identical diploid cells
- B. Mitosis uses random fertilisation, meiosis does not
- C. Meiosis only occurs in plants
- D. Mitosis produces four cells, meiosis produces two
5. A population of bacteria is exposed to an antibiotic. Some bacteria already carry a resistance mutation. What does natural selection predict will happen?
- A. All bacteria become resistant immediately in response to the antibiotic
- B. Resistant bacteria survive and reproduce, increasing the proportion of resistant bacteria over time
- C. The antibiotic causes new mutations that are always resistant
- D. Resistance disappears because mutations are rare