GCSE AQA Biology Cell Division: There are two types of reproduct

Question

There are two types of reproduction:
- sexual reproduction
- asexual reproduction.

Complete Table 1 to compare sexual reproduction with asexual reproduction.

Write a tick (✓) in the box if the statement is true.
The first row has been completed for you.

Table 1

|                          | Sexual reproduction | Asexual reproduction |
|--------------------------|---------------------|----------------------|
| Cell division occurs      | ✓                   |                      |
| Fertilisation occurs      |                     |                      |
| Genes are passed on from parent to offspring |                 |                      |
| Offspring are genetically identical to each other |                    |                      |

Cell division by meiosis forms gametes.

Figure 1 shows the mean mass of DNA per cell before, during and after meiosis.

Use information from Figure 1 to answer questions 0.1.3 to 0.1.6.

When is the DNA in the chromosomes being copied?
Tick (✓) one box.
- Between 0 and 3 hours   
- Between 3 and 4 hours   
- Between 4 and 5 hours   
- Between 5 and 6 hours   
- Between 6 and 8 hours

Cells divide twice during meiosis.

Which two times in Figure 1 show one cell dividing into two cells?
Tick (✓) two boxes.
- 3 hours   
- 4 hours   
- 5 hours   
- 6 hours   
- 8 hours

What is the mean mass of DNA in arbitrary units in a sperm cell?
Tick (✓) one box.
- 2   
- 4   
- 8   
- 16

What is the mean mass of DNA in arbitrary units in each cell in an embryo?
Tick (✓) one box.
- 2   
- 4   
- 8   
- 16

Turn over for the next question.

There are two types of reproduction: - sexual reproduction - asexual reproduction - AQA - GCSE Biology - Question 1 - 2022 - Paper 1

Worked Solution & Example Answer:There are two types of reproduction: - sexual reproduction - asexual reproduction - AQA - GCSE Biology - Question 1 - 2022 - Paper 1

Complete Table 1 for sexual and asexual reproduction

0.1.3 When is the DNA in the chromosomes being copied?

0.1.4 Which two times in Figure 1 show one cell dividing into two cells?

0.1.5 What is the mean mass of DNA in arbitrary units in a sperm cell?

0.1.6 What is the mean mass of DNA in arbitrary units in each cell in an embryo?

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	Sexual reproduction	Asexual reproduction
Cell division occurs	✓
Fertilisation occurs	✓
Genes are passed on from parent to offspring	✓
Offspring are genetically identical to each other		✓