Question 1Multiple choice · 1 markA* challenge
Which cell division produces offspring in asexual reproduction?
- A meiosis
- B fertilisation
- C fission of gametes
- D mitosis
Show answer
Answer: D
Free Asexual & sexual reproduction questions for IGCSE Biology (0610), part of Reproduction. Each question has the answer and the marking points an examiner would look for.
Generate a full Asexual & Sexual Reproduction worksheet →All Reproduction questionsWhich cell division produces offspring in asexual reproduction?
Answer: D
What is fertilisation?
Answer: B
A strawberry plant grows runners that form new plants.
Name this type of reproduction.
Explain why the new plants are genetically identical to the parent.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | asexual asexual reproduction B1 | 1 |
| (b) | mitosis, no fertilisation they are produced by mitosis B1 there is no fusion of gametes B1 | 2 |
Bacteria reproduce asexually by binary fission.
Explain why a population of bacteria can grow very rapidly.
State one disadvantage to bacteria of reproducing asexually.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | divide every 20 min, exponential each cell divides into two B1 this can happen every 20 minutes, doubling the population B1 | 2 |
| (b) | no variation no genetic variation B1 | 1 |
Asexual and sexual reproduction both produce offspring.
Define asexual reproduction.
Give one advantage and one disadvantage of asexual reproduction for a plant population.
Give one advantage of sexual reproduction.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | one parent, genetically identical offspring a process resulting in the production of genetically identical offspring B1 from one parent B1 | 2 |
| (b) | quick, no partner; no variation advantage: rapid / no need for a mate or pollinator B1 disadvantage: no genetic variation, so a disease or change could affect all B1 | 2 |
| (c) | variation produces genetic variation, so some may survive environmental changes B1 | 1 |
This question is about asexual and sexual reproduction.
Define asexual reproduction.
Give two examples of asexual reproduction in plants.
Give two advantages and two disadvantages of asexual reproduction for a plant species in the wild.
Explain why sexual reproduction produces variation.
Explain why gametes must be haploid.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | one parent; offspring genetically identical process resulting in genetically identical offspring B1 from one parent B1 | 2 |
| (b) | runners (strawberry); tubers (potato); bulbs; cuttings Any 2 of: runners (strawberry); tubers (potato); bulbs (onion); cuttings B2 | 2 |
| (c) | fast, one parent; well-adapted features kept; no variation, disease can wipe out; overcrowding advantages: only one parent needed / rapid B1 offspring keep features suited to the habitat B1 disadvantages: no genetic variation so poor adaptation to change / all susceptible to the same disease B1 offspring may compete with parent (overcrowding) B1 | 4 |
| (d) | gametes formed by meiosis, genetically different; random fertilisation meiosis produces genetically different gametes B1 random fusion of gametes at fertilisation B1 | 2 |
| (e) | so the zygote has the diploid number so that when two gametes fuse the zygote has the normal diploid number of chromosomes B2 | 2 |
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