Draw oppositely oriented DNA strands and show complementary base pairs held together by hydrogen bonds.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Inherited information is encoded in DNA and expressed in phenotypes. (a) Draw a DNA segment containing two base pairs. Label its nucleotide components and the interactions between the bases. (b) Describe how whole-genome sequencing can be used to infer…
Which features belong to an ordinary double-stranded DNA molecule? I. Opposite strands show complementary pairing. II. Its nucleotides contain deoxyribose. III. Thymine is one of its bases. A. II only B. I and III only C. I, II and III D. I and II only
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…
Which list contains only complementary pairs in ordinary double-stranded DNA? A. A with U, and G with T B. A with C, and T with G C. U with C, and A with G D. A with T, and G with C
(i) Describe the structure of a nucleosome. (ii) Explain what holds the two DNA strands together. (iii) Outline how tandem-repeat regions are used in DNA profiling.
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