Explain the evolutionary advantage of having multiple operons for various sugars

1 answer:

6 0

Operons are gene regulatory mechanisms that involve promoting and repressing genes that are involved in the metabolism of organic substances (i.e. sugars). Living organisms have the innate ability to metabolize glucose as the main source of energy. Although, in the absence of glucose, the organism must "learn" to use sugars other than glucose (such as lactose) in order to survive.

For instance, in the <em>lac </em>operon:
In the absence of glucose, various regulatory proteins promote the transcription of the gene related to the metabolism of lactose. This will ultimately lead to the production of the enzyme beta lactosidase which will enable the organism to use lactose as energy in the absence of glucose. This will therefore increase the chances of the organism for survival and will be naturally selected for evolution.

You might be interested in

With help from other enzymes, DNA polymerase acts to join nucleotides together to form a new strand of DNA. During normal DNA re

Licemer1 [7]

Answer:

I think the answer is B

7 0

4 years ago

Read 2 more answers

A minimum of 100 years of isolation is required for two populations to accumulate enough differences to be considered different

grigory [225]

False, it would not accumulate enough differences to be considered different species.

7 0

4 years ago

What system is used for human reproduction, and what parts does it include.

Brilliant_brown [7]

Well, the system for human reproduction is called just this: human reproductive system. The male and female reproductive systems are different; and male consists most importantly of penis and testicles, which further have their own parts.

The female system is composed mostly of the uterus, (including the vagina, which leads to the uterus, and the ovaries.

7 0

4 years ago

Read 2 more answers

What level of organization is represented by the brain

Bogdan [553]

Cell,tissues ,Organs and Organ Systems. After tissues, organs are the next level of organization of the human body. An organ is a structure that consists of two or more types of tissues that work together to do the same job. Examples of human organs include the brain, heart, lungs, skin, and kidneys

8 0

4 years ago

What can happen as Argentine ant colonies grow and split off to make new colonies?

Neko [114]

In a generic ant colony a single nest contains a few male drones for female fertilisation, one queen who lays the eggs and sterile female workers responsible for brood care, foraging, nest defence and fighting1. All workers in the colony maintain strict borders and are highly aggressive towards any non-nestmate alien intruders. This cooperation that is shown between nestmates is simple, efficient and masterful.

8 0

3 years ago