CAIE A-Level Biology AS 6.1.6 Rna Mrna Structure Questions
Explain how DNA mutations arise and affect phenotype, using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- Explain how DNA mutations arise and how they can affect gene function and phenotype.
CAIE A-Level Biology AS 6.1.6 Rna Mrna Structure Questions question 1
[Maximum number: 1]
Which statement about mRNA is correct?
A
It is a polymer made of nucleotides all joined with hydrogen bonds.
B
Each nucleotide subunit contains the sugar ribose.
C
It always has an equal proportion of adenine and uracil.
D
The mRNA sequence is identical to the template strand of DNA.
B
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