The first step in DNA replication is that DNA helicase break the<span> hydrogen bonds between complementary bases of parent.</span>
The “bases” of RNA differ from those of DNA in that thymine (T) is replaced by uracil (U) in RNA. ... In DNA/RNA base pairing, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G).
Just say we have a big amount of tryptophan in the sense that it exceeds, tryptophan would act as a co-repressor which prevents synthesis of more enzymes for its production
Hope this helps :)
Question 1: im not completely sure but either A or B. but i would go with A
question 2: B-calvin cycle
question3: B-splitting carbon dioxide.
question 4: B-chlorophyll
Answer:
it's true
Explanation:
if it's dim light the iris will be large
