1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lemur [1.5K]
2 years ago
8

Under which conditions are the lac structural genes expressed most efficiently?

Biology
1 answer:
madam [21]2 years ago
4 0

Lac genes are most effectively expressed in presence of Lactose and its analogs when glucose is absent.

Explanation:

A unit of prokaryotic gene expression and regulation,which includes structural genes and regulatory sequences recognized by regulatory gene product is called operon.

<em>Lac </em>structural genes are a part of<em> Lac</em> operon. The <em>Lac </em>operon consists of three, structural genes,an operator and a promoter.The product of Lac operon is involved in the conversion of disaccharide lactose into glucose and Galactose.

Lactose and its analogs are inducers of<em> Lac </em>operon. So, the structural genes are best expressed in presence of Lactose. Glucose and galactose are repressors of lac gene so the genes are repressed in presence of glucose.

You might be interested in
What is the crust beneath the Atlantic Ocean like?
77julia77 [94]

Answer:The 3rd one

Explanation:

“Crust” describes  the outermost shell of a terrestrial planet. Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics.

5 0
2 years ago
Which term names part of the peripheral nerves system A spinal cord B brain C sensors​
Dimas [21]

Answer:

Spinal cord

Explanation:

The PNS consists of the nerves and ganglia outside the brain and spinal cord.

6 0
2 years ago
Read 2 more answers
All fungi are...
vlada-n [284]

Answer:

A. eukaryotes and heterotrophic

Explanation:

Remember Fungi is not either bacteria or a plant. But we know Fungi has a membrane-bound nucleus that makes it eukaryotic. They obtain material from the enviroment, instead of creating their food, which makes them heterotrophic.

4 0
3 years ago
Read 2 more answers
The best source of internal motivation is from
dybincka [34]
<span>positive self talk is the best source of internal motivation.</span>
3 0
3 years ago
B<br> WA<br> Youngest<br> Oldest
DedPeter [7]

Answer:

what is the question

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • A client has been diagnosed with an anterior pituitary tumor, and synthesis and release of follicle-stimulating hormone has beco
    10·1 answer
  • Polyp animals that form coral reefs have many unique adaptations for survival. One polyp feature that is detrimental rather than
    14·1 answer
  • Osmoregulation is a major function of kidneys and __________ in fishes
    6·1 answer
  • Binary fission is a characteristic of kingdom ______ and is most similar to the cellular processes of ___________.
    9·2 answers
  • Animals eat plant to get?
    14·2 answers
  • The central portion of earth is called the <br> A mantle<br> B core<br> C Moho<br> D crust
    13·2 answers
  • Environmental designers design structures to match the environment.
    9·1 answer
  • 1.) When does a woman run out of eggs?
    7·1 answer
  • Nucleus is discovered by whom
    7·1 answer
  • 2. A woman has just given birth to a daughter with a birth defect; malformation of her outer wear. The mother’s labs also indica
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!