The statement "When levels of the amino acid are high, it binds to the repressor, allowing synthesis of this amino acid to proceed" (A).
E. coli needs amino acids to survive. It can ingest the amino acid, Tryptophan from the environment. When the levels of Tryptophan are low, it can synthesize Tryptophan by using enzymes that are encoded in five genes. These genes lie next to each other in the tryptophan operon. If tryptophan is available in the environment, E. coli will not synthesize it.
Answer:
c. a ball rolling from point A to point B
Explanation:
a is talking about the position of the train
b is talking about the length of the track
d is talking about the distance a student is from somewhere.
So from taking all these options out we are left with C because the ball is actually moving and when something moves it is in motion.
Answer:
C Intergovernmental Panel on Climate Change
Explanation:
The Intergovernmental Panel on Climate Change (IPCC) is an intergovernmental body of the United Nations that is dedicated to providing the world with objective, scientific information relevant to understanding the scientific basis of the risk of human-induced climate change
-Wikipedia
A human female has XX chromosomes
