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Georgia [21]
3 years ago
9

What is the purpose of having a positive and a negative control?

Biology
1 answer:
erica [24]3 years ago
5 0

Answer:

The positive control should give a large amount of enzyme activity, while the negative control should give very low to no activity. If the positive control does not produce the expected result, there may be something wrong with the experimental procedure, and the experiment is repeated.

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If I breed a short for FF female with a short for Ff male then I will expect to see what type of offspring
Usimov [2.4K]
If being short is the dominant trait, then you should expect the offspring to also be short.

This is because the traits are spread out as four different possibilities. Either FF, FF, Ff, or Ff. If the dominant trait is being short, “F” then this would mask the recessive trait “f”.
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3 years ago
Bacitracin blocks the transport of NAG and NAM across the cytoplasmic membrane to the cell wall. Like other antimicrobials that
Anastasy [175]

Answer:

The correct answer is "cell lysis due to the effect of osmotic pressure".

Explanation:

The cell wall is a structure that brings protection from the outside world and also helps to maintain the cell's water balance. The cell wall prevents that the cells is exposed to a large amount of turgor pressure, making the cell turgid when it is under extremal conditions. Some antimicrobials, such as bacitracin, block cell wall synthesis which makes the cell unable to support turgor pressure, resulting in cell lysis due to the effect of osmotic pressure.

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3 years ago
Two stimuli repeatedly experienced together will eventually elicit the same response. Additionally, behaviors followed by pleasa
photoshop1234 [79]

Answer:

Change in behavior due to the experience result.

Explanation:

The organism is able to elicit a response against the particular stimuli. The stimuli can be from the external as well as from the internal environment.

The response against a stimuli can be pleasant as well as can be awarded with the punishment. The stimuli awarded with pleasant can be repeatedly used by the organism and unpleasant outcomes of the stimuli can be completely dropped. The individual changes its behavior due to the experience of the result provided by the stimuli outcome.

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What to do to reduce weight and become thin in 1 month
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Eat fig and do exercise every day

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Read 2 more answers
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Wear safety goggles while looking into the opening of the test tube
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