Zadanie 1
A nucleotide contains one of the pentose structures shown. Which structure can provide the sugar component of a DNA nucleotide? A. Structure A B. Structure B C. Structure C D. Structure D
- Materiał graficzny
Nucleic acids
Umiejętności w tym dziale
Umiejętności z tego działu sprawdza 30 zadań wzorowanych na arkuszach IB z lat 2022–2026. Dział pojawia się w 24 z 57 arkuszy w bazie.
Zadania z tego działu: 30 Otwórz w wyszukiwarce z filtrami
Zadanie 1
Three claims are made about viruses. I. Every virus has an RNA genome. II. Viral particles carry a nucleic acid genome. III. Viruses lack the independent cellular metabolism required for living organisms. Which claims apply to all viruses? A. I and II B. II…
Zadanie 2a
Draw and label the molecular components of one RNA nucleotide, showing how they connect.
Zadanie 4a
Compare and contrast the molecular structures of DNA and RNA.
Zadanie 1a
The DNA genome of P contains 58 million adenine–thymine pairs. Deduce its number of cytosine–guanine pairs.
Zadanie 1b
State one organelle in which paired nucleic-acid bases occur.
Zadanie 2
Which property gives a long DNA molecule its capacity to encode many different messages? A. The fixed thickness of its backbone B. The variable order of its bases C. The identical charge on all phosphate groups D. The fact that each sugar contains five carbons
Zadanie 5a
A barley cell copies and expresses its hereditary information. State the monomer from which DNA is assembled.
Zadanie 5b
Compare the usual cellular forms of DNA and RNA. Distinguish two structural features of DNA from RNA.
Zadanie 2a
Explain why28.7%thymine is expected.