Operons are made of two or more genes that are located near each other in a sequence of DNA. Some operons allow for regulation of the expression of proteins at the transcriptional level. As a result, some operons are inducible, while others repressible. Which of the following represents an inducible operon? a. The production of enzymes that allow for the fermentation of the sugar lactose when it becomes available in the culture medium b. The enzymes needed for glucose metabolism are always produced at a constant level. c. Proteases break down proteins when they are no longer necessary. d. The discontinued production of the enzymes needed to synthesize the amino acid tryptophan if it is added to the growth medium
Answers: 3
Biology, 21.06.2019 19:30, zmeister
What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.
Answers: 2
Biology, 22.06.2019 04:20, kearahbillups677
Hybrid instruments that play sounds that are part sampled and part synthesized are known as:
Answers: 1
Biology, 22.06.2019 08:50, Marisolv06
You are observing different types of cells in your science lab. one cell has many chloroplasts. what is the most likely function of this cell? a. energy production b. photosynthesis c. reproduction d. digestion
Answers: 1
Operons are made of two or more genes that are located near each other in a sequence of DNA. Some op...
Arts, 19.11.2020 01:40
English, 19.11.2020 01:40
Mathematics, 19.11.2020 01:40
Mathematics, 19.11.2020 01:40
English, 19.11.2020 01:40
Advanced Placement (AP), 19.11.2020 01:40
Mathematics, 19.11.2020 01:40
Biology, 19.11.2020 01:40