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
Alekssandra [29.7K]
2 years ago
9

Assume that one of the disinfectant/antiseptics tested using the disc method had a clear zone of inhibition and to your surprise

, you discover minute growth near the disc. What would explain this phenomenon
Biology
1 answer:
o-na [289]2 years ago
8 0

The presence of the minute growth near the disc signifies that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances.

<h3>What are zones of inhibition?</h3>

The sensitivity testing in a microbiology laboratory is done to determine the effect of antibiotics on various bacteria organisms

The zone of inhibition when a disk method is used signifies the area of media where bacteria are unable to grow, due to presence of a drug that impedes their growth.

If there are presence of minute growth near the disc, it means that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances such as disinfectants.

If these mutant bacteria organisms are not cleared by the disk method, it means that they cannot be killed by the disinfectant/antiseptics that is being tested.

Learn more about antiseptics here:

brainly.com/question/26994900

You might be interested in
Why is irrigation important in the farming industry​
stepladder [879]

Answer:

Allows farmers and producers to control the amount of water that is placed on the field which allows the crop to get the needed amount of water for growth and development.

Explanation:

7 0
3 years ago
Which diseases are caused by viral infection?
makkiz [27]
A common cold i believe .
5 0
3 years ago
Most of the nucleated cells in a multicellular organism contain all of the genetic information for the organism. Which of the fo
vova2212 [387]

<u>Answer</u>: Sperm cell

<u>Explanation</u>:

Amongst all the 4 options given, only the Sperm cell is a gamete (sex cell) while all the three are somatic cells.

  • A <em>somatic</em> cell is the one which forms the body of an organism and contains all the genetic information.
  • A <em>gamete</em> is the one which is required for the purpose of fertilization. A gamete of male fuses with the gamete of female in a process called fertilization to form a zygote to give rise to a new individual.
  • A Sperm cell is basically a <em>male gamete.</em> It contains only half the amount of genetic information as the other half is contributed by the female gamete.
  • This difference in the amount of genetic information arises due to the type of cell division that occurs. The somatic cells undergo mitosis whereas a gamete requires meiosis to occur for its formation.
  • During mitosis there is a single round of cell division which divides the parent cell into two daughter cells each with the <em>complete genetic information</em>.
  • During meiosis the cell undergoes two rounds of cell division such that a total lf 4 cells are produced each <em>with half the amount of genetic material </em>as present in the parent cell.

Since, <em>sperm is a male gamete and is formed by meiosis it contains only half the genetic information as compared to the other cells.</em>

3 0
3 years ago
Testosterone causes secondary male characteristics list 3 such characteristics
Nonamiya [84]
1) appearance of beard and moustache

2) broadening of chest and shoulders

3) changing of voice into a more grave one
6 0
3 years ago
6. What is An organism like a green plant that can make its own food
valkas [14]

Answer:

Autotrophs. An organism like a green plant that can make its own food are called an autotrophs. Autotrophs can make their own food through the process of photosynthesis. Photosynthesis is present in these organisms, a mechanism where they gather, water from the soil, heat from the sunlight though the pigment called chlorophyll and carbon dioxide in the air to manufacture and generate its own food. Autotrophs are also the primary sources of food in the food chain which contains immense amount of calories.

Explanation:

8 0
3 years ago
Other questions:
  • What must be true of the bonds for a reaction to be endothermic
    11·1 answer
  • Scientific skeptism means that
    8·2 answers
  • Genetic flow is the transfer of __________ from one population to another.
    8·1 answer
  • When Avery and his colleagues had obtained the transforming factor from the IIISIIIS virulent cells, they treated the fraction w
    15·1 answer
  • Which phrase describes this plate boundary​
    9·1 answer
  • What is one function of the embedded proteins
    5·1 answer
  • The series of predictable changes that occurs in a community over time is called
    12·1 answer
  • Please help thanks!!!!
    12·1 answer
  • What are the 2 cells that use meiosis to replicate?
    13·1 answer
  • 26. Northern Harrier Hawks, also known as Marsh Hawks, get their name from their hunting
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!