Answer: D.600 minutes
Explanation:At 70 percent it takes about 450 minutes, so it should take about 600 minutes at 90 percent.
The is because both are hydrophobic (due to their neutral
side chains) and have approximately the same net charge. The isoelectric point
of leucine at 25 degrees centigrade is 6.04 while that of alanine is 6.11. Therefore,
this mutation does not change the
structure of the protein hence does not affect its function (if not considerably).
I think C because in order to tell what the age is it depends on the depth of it like fossils the deeper the older it gets Soo if I dug a tunnel 25 meters deep I could be able to tell the age and if u dug a little bit more u can maybe fine dinosaur bones that and the ground and sea ground can change or shift from place to place. I hope u found this a reasonable answer for u.
I believe it’s true, correct me if i’m wrong
