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Course: AQA A Level Biology 7402
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AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

4.4.5 Environmental Adaption – Exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
An environmental change favours the tallest giraffes, which survive and pass on their genes. This is an example of
An environmental change favours the tallest giraffes, which survive and pass on their genes. This is an example of
directional selection.
stabilizing selection.
sexual selection.
disruptive selection.
2.
The maximum population that environmental resources in a given area can sustain
SAT Biology - Question 004
A
B
C
D
E
3.
According to the comparison table in this lesson, what is the Phenotype effect of Himalayan rabbit?
According to the comparison table in this lesson, what is the Phenotype effect of Himalayan rabbit?
Environment and phenotype
Dark fur on cold extremities
Sex of offspring
Normal development on low-phenylalanine diet
White in winter, brown in summer
4.
Which key term matches this description: "One genotype producing different phenotypes in different environments."
Which key term matches this description: "One genotype producing different phenotypes in different environments."
Epigenetics
Norm of reaction
Seasonal variation
Phenotypic plasticity
5.
Which statement best describes Methylation?
Which statement best describes Methylation?
Temperature, pH, diet, light.
Changes with seasons.
Adding methyl groups; silences genes.
One genotype producing different phenotypes in different environments.
6.
According to the comparison table in this lesson, what is the Phenotype effect of Hydrangea?
According to the comparison table in this lesson, what is the Phenotype effect of Hydrangea?
Environment and phenotype
White in winter, brown in summer
Normal development on low-phenylalanine diet
Blue (acid) or pink (alkaline) flowers
Sex of offspring
7.
Which statement best describes Epigenetics?
Which statement best describes Epigenetics?
One genotype producing different phenotypes in different environments.
Changes with seasons.
Adding methyl groups; silences genes.
Changes in gene expression without DNA sequence change.
8.
Which key term matches this description: "Uses environmental heat."
Which key term matches this description: "Uses environmental heat."
Producer
Decomposer
Gross primary productivity
Ectotherm
9.
Why use genetically identical plants to test environmental effects?
So differences can be attributed to the environment, not genotype
They grow faster
They have no genes
To increase variation
10.
Using the table, which country probably has the greater environmental impact, and why?
Country X, because much higher consumption per person outweighs its smaller population
Country Y, because it has more people
They are equal because impact equals population
Neither has any impact
11.
Complete the statement: Hydrangea colour depends on soil ______.
Complete the statement: Hydrangea colour depends on soil ______.
Seasonal variation
Epigenetics
silences
pH
12.
Environmental impact depends only on the number of people. True or false?
True
True for poor countries
True for rich countries
False
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Part of 4. Genetics, Variation and Interdependence — see every lesson and quiz in this unit.
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