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Tanya [424]
3 years ago
6

Summarize how Hershey and chase confirmed that dna is the genetic material

Biology
1 answer:
Ierofanga [76]3 years ago
5 0

He labeled the protein of bacteriophages with radioactive sulfur and their DNA with radioactive phosphorus. The bacteriophages were allowed to infect bacteria.

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What differentiates galaxy groups from clusters?
Arisa [49]

Answer:

it´s <u><em>B</em></u> the answer is B

Explanation:

thats just the answer i think not too sure really but feel free to correct me is you like my dude.

8 0
3 years ago
​(f) contact a local hospital and ask them the percentage of the population that is blood type o. why might the results​ differ?
Fudgin [204]
Contacting a local hospital and asking them the percentage of the population that has blood type O will generate different results. 

The factors that we have to consider why there is differing results are:
1) location of the hospital
2) nationality of their patients
3) number of their patients

I am assuming that the population that question is referring to is the number of patients in the local hospital. The bigger the population, the smaller the effect a unit has on the whole and vice versa. 

I read an article that states that 37% of the U.S. population has O+ blood type. These people are usually of Hispanic descent or some Asian descent. So, if a hospital is in a locality that has a majority of Hispanic or Asian patients, its percentage will be higher than a hospital that is located in a Caucasian-populated area. 

Aside from Type O+ (most common), blood types also include: O-, A+, A-, B+, B-, AB+, and AB- (rarest blood type)
7 0
3 years ago
Which layer of the digestive tract controls digestive propulsion?
Citrus2011 [14]

Out of the following given choices;

mucosa

 

serosa

 

submucosa

 

muscularis externa

The answer is muscularis externa. This layer is one of the 4 layers (tunics) of the GI tract. It is found beneath the submucosa and is composed of smooth muscles. The smooth muscles are responsible for the involuntary movements called peristalsis, that move food along the gastrointestinal tract.






7 0
3 years ago
Explain how you test sand sifting plastics
sveticcg [70]

You don't need to push the wheelbarrow down the beach. Instead, fill it up with sand. "It starts by going around with a bucket and shoveling and collecting all of the plastic debris that you see," said Aivazian. The water from the hoses pushes the plastics to the surface and separates them from the sand.

4 0
3 years ago
The DNA of a fly and the DNA of a gorilla are made up of subunits that re
AleksAgata [21]
They are both made up of subunits called nucleotides, which include a sugar, a phosphate group, and a nitrogen base.
6 0
4 years ago
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