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Rufina [12.5K]
3 years ago
13

If you are performing this test on an unknown organism why is it a good idea to run simultaneous

Biology
1 answer:
AlexFokin [52]3 years ago
7 0
The question seem to be incomplete but I found the complete question which is:
If you are performing this test on an unknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms?

Here is the Answer:

Inoculation of a positive control and success from it includes certainty to negative outcomes on an unknown organism. That is, you know the test is working effectively, so the negative outcome is most likely precise. Without the positive control, there is dependably a component of uncertainty whether the negative outcome is a genuine negative or a false negative. performing the test on a known phenlalanine-negative organism is valuable in that it exhibits what a negative outcome looks like.
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What happens when the most<br> limiting factor in an ecosystem is<br> removed?
Anvisha [2.4K]
The answer is A, population growth increases .

—Explanation—
•] The definition of limiting factor; anything that constrains a population's size and slows or stops it from growing.
•]Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources.
•] So if the limiting factor is removed then the population begins to expand due to not having a factor that limits each species quantity.
5 0
2 years ago
After mitosis, how many chromosomes do the new cells have compared to the original?
irakobra [83]

Answer:

The same

Explanation:

In mitosis, genetically identical daughter cells are created. In meiosis the number of chromosomes is half as many as the original cell

6 0
3 years ago
Read 2 more answers
4) Peter is viewing a prepared slide with the 40X objective. His view is
masya89 [10]

Answer:

Peter is viewing a prepared slide with the 40X objective. His view is

shown below. Unfortunately, the label in the slide has been torn off,

so he is not sure what he is looking at. Based on his observation

alone, can Peter identify the type of organism that these cells come

from? Why or why not?

Yes, Peter will identify identify the organism as label would not deter its identification. Reason being that diagram without labeling would not nullify identification of my organism

Explanation:

6 0
3 years ago
Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from elongating. What effect might this have on d
lianna [129]

The effect Colchicine might have on dividing cells is that the duplicated chromosomes might not be able to segregate into daughter nuclei.

Colchicine is an alkaloid that attaches to tubulin and prevents it from polymerization to microtubules. As we know that Microtubules are a component of the cytoskeleton of a cell that aids in molecular mobility inside the cell.

During cell division, chromatin condenses into chromosomes, which are then connected to microtubules. The chromosomes are separated into daughter cells by microtubules.

When these cells are treated with colchicine, tubulin polymerization to microtubules may not occur, and the chromosomes containing daughter nucleic might not be separated.

Learn more about chromosomes here:

brainly.com/question/2583209?referrer=searchResults

8 0
2 years ago
Lateral compartment muscle that plantar flexes and everts the ankle
hoa [83]

Answer:

The fibularis longus  

Explanation:

The fibularis longus starts at the top of the fibula and attaches to the first metatarsal bone of the foot.

It has two functions:

  1. Eversion of the ankle (turning the foot outwards)
  2. Plantarflexion (the movement like standing on tiptoe or depressing a gas pedal)

3 0
3 years ago
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