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
Nesterboy [21]
3 years ago
5

When glucose is present, the lac genes are not fully expressed, even in the presence of inducer. This is called catabolite repre

ssion.
a.. Why does it make biological sense to have the lactose operon under negative control by Lac repressor?
b. CAP is necessary to turn on several sugar operons (including the arabinose, lactose, maltose, and galactose operons). Cells with mutations in CAP cannot efficiently metabolize any of these sugars. On plates that contain a sugar and tetrazolium (an indicator dye), colonies are white if that sugar is metabolized and red if it is not. This kind of plate is often used to screen for cells that cannot metabolize a particular sugar. How could you use these plates to isolate CAP mutants?
Biology
1 answer:
JulsSmile [24]3 years ago
3 0

Answer:

It can be analyzed by means of genetic analysis in case there is a genetic failure in said cell, or even laboratory tests can be done.

Your question is a little poorly written, I think you need to connect the sentences or make them more developed.

When glucose increases in the blood, it is considered that the body enters a stage of glycemia, which activates the metabolic pathways of said compound, that is why glucose enters the cell and is used as an immediate energy source or as a reserve in the case that it is a person who does not require energy at the moment.

There are studies that prove that certain cells have an inability to assimilate and generate the glucose to enter their SCI, that is, to the intracellular fluid, which leads to constant glycemia, or hyperglycemia in some cases.

Explanation:

A very clear example within the pathophysiology of this phenomenon is the disease of diabetes myelitus.

You might be interested in
1.
Lorico [155]

Answer:

A

Explanation:

Energy cannot be created nor destroyed.

7 0
3 years ago
Read 2 more answers
If a DNA strand has the following sequence, what is the sequence of the complementary strand?
Anarel [89]

Answer: TGGATCAGC

Explanation:

7 0
3 years ago
When fructose and glucose are bonded together, they form?
faust18 [17]
Table sugar I'm pretty sure
7 0
3 years ago
13. A biochemist isolated and purified molecules needed for replication. When DNA was added, replication occurred but the DNA mo
zalisa [80]

Answer:

DNA ligase

Explanation:

DNA replication is a process whereby a particular DNA makes a copy of or synthesizes itself. It consists of several steps with some important enzymes for successful, error free replication. The various steps are as follows;

  • Unwinding of the double helix structure of the DNA and formation of replication fork. The enzyme involved here is the DNA helicase.
  • Primer, a short piece of RNA becomes synthesized and binds to the 3' end of one of the 2 strands of the DNA, the leading strand. The enzyme involved is the DNA primase.
  • Replication of the <em>leading strand</em> then proceeds with the elongation of the primer through the addition of bases in the 5' to 3' direction leading to the formation of continuous strands.
  • The other strand of the DNA, known as the <em>lagging strand </em>starts its own replication by binding with multiple primers at different regions of the strand. Bases are then added to each primer leading to the formation of several, short discontinuous DNA strands known as Okazaki fragments. The enzyme involved in the elongation process is the DNA polymerase.
  • Next is the termination of the replication process after the formation of the continuous and discontinuous strands. Exonuclease enzyme removes primers from the synthesized strands. Primers are replaced by appropriate DNA bases and the Okazaki fragments are joined to form a unified DNA strand by an enzyme known as the DNA ligase.

The many, few nucleotides long DNA segments observed by the Biochemist are the Okazaki fragments that should have been joined together by the DNA ligase.

Hence, DNA ligase must have been the component left of the mixture.

7 0
3 years ago
A natural source of carbon dioxide in our atmosphere​
Misha Larkins [42]

Answer:

Animals, Humans, Oil, Gases, And Coal all contain Carbon Dioxide in our atomosphere.

Explanation:

8 0
3 years ago
Other questions:
  • How do adult stem cells differ from embryonic stem cells?
    15·2 answers
  • A scientific explanation for a natural occurrence is called
    9·2 answers
  • Which long-term health condition is strongly associated with tobacco use? cancer bronchitis weight loss type 1 diabetes?
    9·1 answer
  • Proteins called transcription factors are involved in ____ of transcription
    14·2 answers
  • In one experiment, 100g of starch was broken down by the enzyme in 8 minutes. Calculate the rate of this reaction in terms of am
    9·1 answer
  • Doctors do not administer vaccinations to people who are too sick. Which best explains why?
    5·1 answer
  • The selective breeding of wild mustard has ___ ___ and produced at least four other vegetable crops.
    9·1 answer
  • Which of the following statements is true?
    6·2 answers
  • MRNA sequence for the DNA sequence C-A-A-G-G-T
    9·1 answer
  • Compose a pickup line using the information you understand about the components of the eco-system​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!