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
____ [38]
3 years ago
13

Jason adds the antibiotic penicillin to a bacterial culture. The bacteria develop genetic modifications in their genome, which g

ives them resistance to the antibiotic penicillin. What caused this genetic modification?
Biology
1 answer:
Aleks [24]3 years ago
3 0
The correct answer is A.
The use of antibacterial drugs can cause modifications in the genetic material of the concerned bacteria. If the genetic material of the bacteria are modify, that means they have undergone mutation. Because the base sequence of the normal and that of the mutated gene is different, antibiotic will not be able to recognize the bacteria again and thus will not be able to attack it. 
You might be interested in
Which statement is correct about a euglena and a white blood cell? (1 point) A euglena cannot survive on its own because it is j
Elina [12.6K]

Answer:

. A euglena survives on its own because it completes all life functions. A white blood cell cannot survive on its own because it is just one cell.

Explanation:

. A euglena survives on its own because it completes all life functions. A white blood cell cannot survive on its own because it is just one cell because A Euglena is a unicellular organism that can perform photosynthesis and complete cell activities. They live in fresh water, have eyespot, can excrete and have flagella for movement which are cellular activities

But a white blood cell cannot survive because it is one cell because it is produce from bone marrow and is a part of the immune system and work with other networks in the body system to fight against body infections.

3 0
2 years ago
Where are Slavic languages MOST widely spoken in Europe? A northern Europe B southern Europe C eastern Europe D western Europe
julsineya [31]
C eastern Europe
Mostly near the baltics and the Balkans, but Czech is also a slavic language.
3 0
3 years ago
1. The ribosomes of which of these pairs of organisms would be expected to be most similar?
chubhunter [2.5K]

In this case, the ribosomes organelles of Satyrinae and Charazinae are expected to be most similar.

<h3>What is evolution?</h3>

Evolution refers to the descendence with modification and therefore differences are lesser in close species.

According to the tree, the statement 'Nymphalidae share a common ancestor with other butterflies' best supports the theory of evolution.

In conclusion, in this case, the ribosomes organelles of Satyrinae and Charazinae are expected to be most similar.

Learn more about evolution here:

brainly.com/question/4207376

#SPJ1

8 0
2 years ago
Show instructions
diamong [38]

This question is incomplete because the images a section 2 are not given. I searched for the complete question but could not find it. However, based on my knowledge and the characteristics of the tundra this is the answer.

The correct answer is C. The climate is harsh, which limits the number of species that can live there.

Explanation

The tundra is the name of an ecosystem that occupies a fifth of the earth's surface, mainly in the northern hemisphere, this is characterized by having a frozen subsoil that limits the emergence and growth of natural vegetation and trees. This ecosystem is the coldest on the planet due to its location near the poles, its landscape is characterized by a layer of snow that covers most of the ground. In addition, the climatic conditions are extreme, which limits the number of plant and animal species that can live there. According to the above, the correct answer is C. The climate is harsh, which limits the number of species that can live there.

4 0
2 years ago
14. A food web is shown below.
anzhelika [568]

Answer:

it's E) hawks

Explanation:

because the energy gets smaller as the predators increase.

6 0
3 years ago
Other questions:
  • A client informs the nurse that he wants to discontinue his treatment and go home. later, the nurse finds the client dressed to
    8·1 answer
  • The evolutionary history for a group of species is called a
    15·1 answer
  • A blobfish is a invertebrate right?
    9·1 answer
  • What are two different forms of a single gene called?
    7·2 answers
  • Directions
    12·1 answer
  • A rainforest is an example of a _____. <br> biome<br> community<br> habitat<br> population
    12·2 answers
  • Gymnosperms and angiosperms, which are seed plants, alternate between ( 2 ) generations.
    15·1 answer
  • Explain how the gradient, load, and discharge of a stream will affect erosion. Use details to support your answer PLS HELP
    15·1 answer
  • How could you prevent the contamination of the phosphorus cycle?
    8·1 answer
  • In the beginning of prophase the DNA coils back up and​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!