2.1 The diagram below represents a portion of a DNA molecule - NSC Life Sciences - Question 2 - 2019 - Paper 2
Question 2
2.1 The diagram below represents a portion of a DNA molecule.
2.1.1 Identify B and C.
2.1.2 Name:
(a) Monomer A
(b) TWO scientists who received a Nobel prize for... show full transcript
Worked Solution & Example Answer:2.1 The diagram below represents a portion of a DNA molecule - NSC Life Sciences - Question 2 - 2019 - Paper 2
Step 1
Identify B and C
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Answer
B is the Nitrogen base and C is the Phosphate group.
Step 2
Name: (a) Monomer A
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Answer
Monomer A is a nucleotide.
Step 3
Name: (b) TWO scientists who received a Nobel prize for discovering the DNA molecule
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Answer
The two scientists are James Watson and Francis Crick.
Step 4
Name: (c) ONE organelle in a cell where DNA is located
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Answer
One organelle where DNA is located is the nucleus.
Step 5
Describe how a mutation on DNA may change the structure of a protein
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Answer
A mutation in DNA can alter the sequence of nucleotides, which affects the codons transcribed into mRNA. This can result in the incorporation of different amino acids during translation, potentially leading to a protein that is misfolded or non-functional.
Step 6
Tabulate TWO structural differences between a monomer of RNA and a monomer of DNA
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