Zadanie 2
Two double-stranded DNA samples give these approximate base percentages. Which values best fit X and Y? A. X = 30.6; Y = 23.8 B. X = 38.8; Y = 52.4 C. X = 19.4; Y = 26.2 D. X = 25.0; Y = 25.0
- Tabela do uzupełnienia
Interpreting Chargaff's base measurements
Analyse base proportions and explain how empirical results can reject a proposed repeating DNA sequence.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2025–2026.
Zadania sprawdzające tę umiejętność: 4 Otwórz w wyszukiwarce z filtrami
Zadanie 4b
Explain how the measurements challenge the equal-four-base hypothesis.
Zadanie 4c
Using the data, evaluate the claim that the purine:pyrimidine ratio is 1.00 in all organisms.
Zadanie 4d
Discuss how the results are consistent with a last universal common ancestor.