Zadanie 2a
Draw a labelled diagram of a single nucleotide that could be incorporated into an RNA transcript.
Parts of a nucleotide
Identify the sugar, phosphate and nitrogenous base and represent their arrangement in a simple diagram.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2022–2026.
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Zadanie 2
A short section of a nucleic acid is represented below. Which component is indicated by X? A. A five-carbon sugar B. A peptide linkage C. A phosphate group D. A nitrogen-containing base
- Materiał graficzny
Zadanie 3c
(i) Draw a labelled diagram showing the components and arrangement of one DNA nucleotide. (ii) Classify the four DNA bases as purines or pyrimidines.
- Materiał graficzny
Zadanie 10
DNA structure and sequence affect biological function. (a) Outline how ultraviolet radiation can act as a mutagen. (b) Explain links between DNA molecular structure and its functions. (c) Describe how gene knockout is used in research. One additional mark is…
Zadanie 6
A DNA molecule contains 360 guanine nucleotides, which are 30% of all its nucleotides. Assuming one phosphate per nucleotide, how many phosphate groups does it contain? A. 108 B. 720 C. 1200 D. 1560
Zadanie 8
Nucleic acids underlie inherited biological variation. (a) Draw and label one RNA nucleotide. (b) Describe how DNA profiling can be used to investigate paternity. (c) Explain why human adult heights vary.
Zadanie 7
Which schematic correctly connects the components along one DNA strand? P denotes phosphate, S deoxyribose and B a base. A. Arrangement A B. Arrangement B C. Arrangement C D. Arrangement D
- Materiał graficzny