1.
State what is meant by the genetic code. [1]
JD SCIENCE
Genetics, variation and gene technology
Answer all questions. Show working. Answers are in a separate file on the Worksheets page — do not look at them until you have finished.
2.
State what is meant by transcription. [1]
3.
State what is meant by translation. [1]
4.
State what is meant by a mutation. [1]
5.
State what is meant by meiosis. [1]
6.
State what is meant by natural selection. [1]
7.
State what is meant by speciation. [1]
8.
State what is meant by taxonomy. [1]
9.
State what is meant by biodiversity. [1]
10.
State what is meant by an antibody in immunity. [1]
11.
Devon is asked about the genetic code in a Edexcel Biology paper.
(a) Describe the genetic code. [2]
(b) Explain why the genetic code is important in this topic. [3]
12.
Devon is asked about transcription in a Edexcel Biology paper.
(a) Describe transcription. [2]
(b) Explain why transcription is important in this topic. [3]
13.
Devon is asked about translation in a Edexcel Biology paper.
(a) Describe translation. [2]
(b) Explain why translation is important in this topic. [3]
14.
Devon is asked about a mutation in a Edexcel Biology paper.
(a) Describe a mutation. [2]
(b) Explain why a mutation is important in this topic. [3]
15.
Devon is asked about meiosis in a Edexcel Biology paper.
(a) Describe meiosis. [2]
(b) Explain why meiosis is important in this topic. [3]
16.
Devon is asked about natural selection in a Edexcel Biology paper.
(a) Describe natural selection. [2]
(b) Explain why natural selection is important in this topic. [3]
17.
A DNA sequence has 600 bases. Maximum amino acids [3]
18.
Chi-squared: 3:1 expected of 80 plants. Expected recessive [3]
19.
Index of diversity N(N−1)/Σn(n−1). If N=10 and Σ=12, D [3]
20.
Heterozygous cross Aa × Aa. Probability of aa [3]
21.
A gene pool has p=0.8. If HWE, frequency of heterozygotes [3]
22.
A 4-base sequence has 4⁴ possible combinations [3]
23.
Devon carries out a Edexcel-style required practical linked to genetic information and variation. This is a typical Edexcel required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
24.
Devon carries out collecting valid data for genetic information and variation. This is a typical Edexcel required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
25.
Devon carries out drawing a graph for genetic information and variation. This is a typical Edexcel required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
26.
Devon carries out evaluating a method about genetic information and variation. This is a typical Edexcel required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
27.
Compare the genetic code with transcription. [4]
28.
Compare transcription with translation. [4]
29.
Compare translation with a mutation. [4]
30.
Compare a mutation with meiosis. [4]
31.
Apply your knowledge of speciation to this situation: allopatric vs sympatric [3]
32.
Apply your knowledge of taxonomy to this situation: binomial names [3]