Answer:
A.) Alligators have round snouts, while crocodiles have pointed, V-shaped snouts.
Explanation:
The difference in crocodiles and alligators is in their snouts.
Answer:
A. Yes, because the %A approximately equals the %T and the %G approximately equals the %C in both species.
Explanation:
According to Chargaff's rule, in all cellular DNAs, the number of adenosine residues (A) is equal to the number of thymidine residues (T). And the number of guanosine residues (G) is equal to the number of cytidine residues (C). Therefore, the sum of the purine residues equals the sum of the pyrimidine residues (A+ G= C+ T). It is based on the fact that a purine base always pairs with a pyrimidine base in a double helix DNA.
Chargaff’s rule is followed in all the double-helical DNA molecules irrespective of the species. In DNAs of sea urchin and salmon, the percentage of adenine is equal to that of the thymine and the percentage of guanine is equal to that of the cytosine. Therefore, Chargaff's rule is followed.
Answer:
D
Explanation:
Fermentation produces a net gain of 2 ATPs
Aerobic respiration produces a net gain of 32 ATPs
Answer: All of the mentioned Scientist made considerable contributions to understanding the DNA molecule in the order:
Explanation: 1.Fredrick Griffith
2. Avery, McCarty and MacLeod
3.Chargaff
4.Hershey and Chase
5.Watson and Crick
