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Alexeev081 [22]
3 years ago
5

In your own words how would you define...

Biology
1 answer:
Verdich [7]3 years ago
7 0
Please answer please please thank you thank
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A person who has been arrested for robbery should be referred to as:
Tpy6a [65]
A person who has been arrested for robbery should be referred to as the suspect.
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3 years ago
A bacterial sample has a cell density of 1.85 x106 CFU/mL. What plate dilution should yield a countable plate? Which two dilutio
insens350 [35]

Answer:

Explanation:

Bacterial count in stock- 1.85x10^6 cfu/ml

Dilution methods

Take 100 uL or (0.1ml) from stock and add to 900ul (0.9ml) saline and mixed it- this makes 10^1dilution.

Now take 100ul from 10^1 dilution and add to next 900ul saline this is 10^2 dilution, similarly do upto 10^5 dilution.

Then take 100ul from 10^ 4 and 10^5 dilution seperately and plate on LB agar plate seperetely and count the colonies.

Cfu/ml formula= (No.of colonies x dilution factor)/0.1 ml

So suppose, 18 colonies formed on 10^4 dilution then total no. Of cells in stock will be 18x10^4/ 0.1= 18x10^5 cfu/ml.

If we dilute 10^4 or 10^5 that's leads to colony count of 18-19 colonies on 10^4 dilution while 2 colonies should come on plate of 10^5 dilution.

7 0
3 years ago
Which of the following is an example of the "ethical dilema" of creating and destroying human embryos?
NeTakaya

The option that is an example of the "ethical dilemma" of creating and destroying human embryos is option A: Some people..."believe an embryo has the same moral standing as a human being?"

<h3>What moral dilemmas do embryonic stem cells present?</h3>

The infinite differentiation potential of iPSCs, which can be used for human cloning and pose a risk for the creation of human embryos and human-animal chimeras, is the center of the current ethical debates surrounding stem cell-based therapies.

However, due to the fact that it involves the killing of human embryos, hESC research is morally and politically contentious. The controversy over abortion has a strong connection to the issue of when human existence begins in the United States.

Learn more about human embryos from

brainly.com/question/2625384
#SPJ1

3 0
1 year ago
"Tryptophan self-controls its synthesis." Justify this statement.
miskamm [114]
Just say we have a big amount of tryptophan in the sense that it exceeds, tryptophan would act as a co-repressor which prevents synthesis of more enzymes for its production

Hope this helps :)
6 0
3 years ago
The data table above includes the distance each planet is from the sun. Students in an Earth science class were asked to explain
Serga [27]

Student 4

Explanation:

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  • Gravity keeps all the planets in its position and allows it to move in its orbit.
  • The force of gravity is inversely proportional to the distance between two objects.
  • So when the distance increases, the force weakens. Since Neptune approximately 4.8 billion kilometers away from the sun, its gravitational force is very less.
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3 years ago
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