Caused by the environment | Caused by inheritance | Caused by both | |
Skin colour | |||
Eye colour | |||
Height | |||
Blood group | |||
Scars | |||
Having attached or detached earlobes |
[3 marks]
Choose words in the box.
Phenotype Mutations Replications Genotype Evolution |
Within human populations everyone has different characteristics, this is called variation.
Differences in the DNA causes different characteristics. The DNA in genes changes due to events called _______________ . When this happens it can sometimes, but not always, lead to changes in the _______________ .
[2 marks]
They counted the number of peas in each pod, as shown in Figure 1.
They did this for all 49 plants in the garden.
Figure 1
[2 marks]
Table 1
Mean number of peas in each pod | Number of plants |
5 | 17 |
6 | 14 |
7 | 8 |
8 | 10 |
Using the axes in Figure 2, complete the bar chart of the data in Table 1.
You will be awarded marks for:
-
- Correctly plotted bars
- Labelling both axes
Figure 2
[3 marks]
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