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
andrey2020 [161]
3 years ago
8

After stamping your replica plates, you return to examine the results and see that there are 100 colonies on the strep nal plate

from master plate strain B and no growth on the strep nal plate from master plate strain A. Which strain (A or B) is the streptomycin-resistant master plate strain
Biology
1 answer:
Advocard [28]3 years ago
7 0

Answer/Explanation:

An important way of selecting for bacteria carrying specific recombinant DNA is to add a resistance gene (such as antibiotic resistance) to your gene of interest. That means that any bacteria that carry your DNA will be resistant to a specific antibiotic (in this case streptomycin). Therefore, you can grow your bacteria on plates with streptomycin, and in theory, the bacteria will be unable to grow if they don't have the resistance gene and your gene of interest.

Here, strain A does not grow on streptomycin plates, but strain B now has 100 colonies. This suggests strain B can grow on streptomycin, meaning it is resistant.

Strain B is therefore the streptomycin resistant master plate strain.

You might be interested in
All of the carpenter ants livinng in your front yard make up a
Verizon [17]

Answer:

Population

Explanation:

8 0
3 years ago
How important is your skin for the functioning of the nervous system?
White raven [17]

Answer:

The skin is very important for the functioning of the nervous system, this is because, it serves as the sensory organ, which transmit the sense of touch to the brain for interpretation. The skin acts as the receptors of stimuli that are coming from outside of the body. For instance, if one mistakenly touch an hot pot with a bare hand, one will quickly remove the hand immediately. This is because the skin was able to sense the touch of hotness and send the information to the brain for the correct interpretation of the stimuli. Therefore, without the skin, the functioning of the nervous system will be impaired.  

6 0
3 years ago
Please give me your answer please please please please please please​
Orlov [11]

Answer:

Movement.

Reproduction.

Respiration.

Responsiveness.

Excretion.

Adaptation.

All organisms have nucleic acid as the hereditary molecule.

All organisms show adaptation, which occurs at the individual level and is tightly related to homeostasis.

3 0
2 years ago
Which is most common to both photosynthesis and respiration
Tatiana [17]

In both of the stages of photosynthesis and in aerobic respiration, glucose is the energy used to create ATP. the gluclose thingy

8 0
3 years ago
Sensation occurs when information:____________ A. interacts with the brain, but the brain cannot make any meaning B. interacts w
Hatshy [7]

Answer:

Is interpreted by the brain.

Explanation:

Sensation is the ability to feel things physically. It can be defined as the process in which the brain collects information through the five sense organs( eyes, nose, skin, tongue, ears) after which the information is interpreted by the brain.

Sensory neurons are responsible for the detection of a stimulus. Neurons helps to transport the message about the stimulus to the brain or spinal cord, which then interprets the information and decides on the specific type of action to carry out.

7 0
4 years ago
Read 2 more answers
Other questions:
  • The heating curve of an ice-water mixture that is slowly heated to 125°C contains three sloped and two level portions. What do t
    7·2 answers
  • A ____ is a chemical substance that organisms require to live.
    9·2 answers
  • ___________ left turns are areas for turning that are controlled by a traffic signal or traffic sign.
    10·1 answer
  • the ________ respond by dividing to produce daughter cells that differentiate into fibroblasts, or other connective tissue cells
    10·1 answer
  • An enzyme is a large ________ molecule.
    15·2 answers
  • Do plants undergo photosynthesis, cellular respiration or both? Explain,
    8·1 answer
  • What are the genotypes
    11·2 answers
  • In dogs, what characteristic is a visual indicator of potential deafness? why?
    7·2 answers
  • Please someone help me with this
    7·1 answer
  • This species has a wide reaching impact on a community
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!