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
snow_tiger [21]
3 years ago
8

Briefly explain how an antibiotic-resistance gene and the lacz gene can be used to determine which cells contain a particular pl

asmid
Biology
1 answer:
viktelen [127]3 years ago
7 0

Bacteria that have taken up the plasmid with antibiotic resistance gene will grow in a medium laced with the particular antibiotic of interest. More so, the bacteria that take up plasmid with the lac Z gene, when grown in a medium of lactose only, will propagate. These experiments are used with selective media that only allows the bacteria with a particular characteristic to grow.   





You might be interested in
When an athlete is nearing the end of a race and her cells are low on oxygen, which of the following is likely to occur in her c
STatiana [176]
<span>the one that is likely to occur in her cells so that glycolysis can continue to produce ATP is : fermentation
When there is not enough oxygen, our body will execute a fermentation process which will regenerate NADH and Glycolysis in our body. This will produce Glucose molecule that could be converted into net ATPI hope that my answer is helpful! Let me know if you need something more :)</span>
8 0
4 years ago
The transfusion reaction that arises from the mixing of incompatible blood types illustrates a/an _____.
adelina 88 [10]

The transfusion reaction that arises from the mixing of incompatible blood types illustrates a/an Hemolytic transfusion reaction.

<h3>Explain the Hemolytic transfusion reaction.</h3>

After receiving blood transfusions, a dangerous complication called a hemolytic transfusion response might develop. The response happens when the recipient's immune system kills the red blood cells that were donated during the transfusion. Red blood cell destruction is known as hemolysis. Other allergic transfusion responses exist that do not result in hemolysis.

<h3>What are the causes of Hemolytic transfusion reaction?</h3>

A high amount of incompatible plasma, which occurs less frequently, and the transfusion of incompatible red blood cells (RBCs) are the two most common causes of acute HTRs that happen during or within 24 hours following the delivery of a blood product. A subsequent immunological reaction to an antigen on the donor's RBCs results in delayed HTRs.

To learn more about Hemolysis and Transfusion reaction, Visit:

brainly.com/question/7026737

#SPJ4

5 0
2 years ago
What is the Precambrian time A) 4 billion years between the first eon and the last won B) the first won C) the last eon D) the f
Y_Kistochka [10]

Explanation:

The Precambrian covers almost 90% of the entire history of the Earth. It has been divided into three eras: the Hadean, the Archean and the Proterozoic. The Precambrian Era comprises all of geologic time prior to 600 million years ago.

6 0
3 years ago
How are catastrophic events related to changes in geological timelines?
Helga [31]

Answer:

D. They define geological periods because scientists use them as reference points for  tracking the history of the earth.

Explanation:

Catastrophic events related to changes in geological timeline are very useful in defining geological periods.

These events have very significant appearance in the geological record and can be used to determine the history of the earth.

The catastrophic events usually culminates into extinction cycles or termination of some organisms from the earth surface.

Geologists use these events that are often wide spread to delineate geological periods.

7 0
3 years ago
When RNA polymerase synthesizes a new mRNA, interactions between the RNA polymerase, the DNA, and the RNA hold the complex toget
timurjin [86]

When a hairpin loop forms in the nascent mRNA: The hairpin will destabilize the interaction and possibly lead to  transcriptional termination.

Transcription in prokaryotes like E. coli is terminated either by a rho-dependent process or a rho-independent process. Intrinsic termination is controlled by the specific sequences of RNA .

When the termination process starts, the transcribed mRNA forms a stable secondary structural hairpin loop, also known as a stem-loop. Several uracil nucleotides follow this RNA hairpin. The uracil and adenine connections are exceedingly weak. NusA, a protein attached to RNA polymerase, attaches to the stem-loop structure so firmly that it momentarily stalls the polymerase.

The polymerase is pausing at the same time that the poly-uracil sequence is being transcribed. The RNA-DNA duplex can unwind and separate from the RNA polymerase because the weak adenine-uracil interactions reduce the energy of destabilization for the RNA-DNA duplex. Overall, transcription is terminated by the modified RNA structure.

Learn more about RNA polymerase here :
brainly.com/question/13326597

#SPJ4

7 0
2 years ago
Other questions:
  • John realized that his orchard has been invaded by certain harmful invasive plants. These plants are consuming all the soil nutr
    9·2 answers
  • Biodiversity is a word that describes the variety of living beings on earth. Biodiversity also refers to the number of different
    15·1 answer
  • Dr. ring studies inquiries about a person's behavior from a approach that focuses on physical processes and chemicals, such as h
    9·1 answer
  • What part of a vertebrate's brain is the center for thinking and complex behaviors?
    7·1 answer
  • I am ugly or pretty ( look at my prf pic )
    11·1 answer
  • What is the percentage of cytosine in wheat ?
    14·1 answer
  • Which structure produces blood cells?
    10·2 answers
  • How many kingdoms are there in the domain Eukarya? O A. 1 O B.2 O c. 4 O D. 3​
    5·2 answers
  • The model show's a portion of a DNA strand. What does the pentagon represent in the model?
    12·1 answer
  • Carbohydrates are used by the body primarily for?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!