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Write complementary DNA and mRNA base sequences

10th grade (Year 11 in England) · 16 questions · Common Core: NGSS.HS-LS1-1, NGSS.HS-LS3-1 · England: GCSE Biology: Inheritance, variation and evolution (DNA structure)

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Score/ 16

Question 1
A DNA template strand reads TGC CTT GTT. Write the mRNA sequence transcribed from it (letters only).
Answer
Question 2
One strand of DNA reads AAC TAA CGA. Write the complementary DNA strand (letters only).
Answer
3
Question 3
What holds the two strands of the DNA double helix together?
- A. metal atoms
- B. a layer of protein
- C. weak hydrogen bonds between complementary base pairs
- D. strong ionic bonds
Question 4
A DNA template strand reads CTG CGT. Write the mRNA sequence transcribed from it (letters only).
Answer
Question 5
One strand of DNA reads CTA TAC. Write the complementary DNA strand (letters only).
Answer
6
Question 6
Which base is found in RNA but not in DNA?
- A. thymine (T)
- B. guanine (G)
- C. uracil (U)
- D. adenine (A)
Question 7
A DNA template strand reads ACA CAT. Write the mRNA sequence transcribed from it (letters only).
Answer
Question 8
One strand of DNA reads ACA TAT. Write the complementary DNA strand (letters only).
Answer
9
Question 9
What holds the two strands of the DNA double helix together?
- A. metal atoms
- B. a layer of protein
- C. strong ionic bonds
- D. weak hydrogen bonds between complementary base pairs
Question 10
A DNA template strand reads GGG GGT TAG. Write the mRNA sequence transcribed from it (letters only).
Answer
Question 11
One strand of DNA reads GTG TCC ATC. Write the complementary DNA strand (letters only).
Answer
12
Question 12
Which scientists' X-ray image helped show DNA is a double helix?
- A. Alexander Fleming's
- B. Gregor Mendel's
- C. Louis Pasteur's
- D. Rosalind Franklin's (with Maurice Wilkins's lab)
Question 13
A DNA template strand reads TTT TGT. Write the mRNA sequence transcribed from it (letters only).
Answer
Question 14
One strand of DNA reads AAC TTG AGA. Write the complementary DNA strand (letters only).
Answer
15
Question 15
What holds the two strands of the DNA double helix together?
- A. strong ionic bonds
- B. a layer of protein
- C. weak hydrogen bonds between complementary base pairs
- D. metal atoms
Question 16
A DNA template strand reads CCC TAC GTC. Write the mRNA sequence transcribed from it (letters only).
Answer

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