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rosijanka [135]
3 years ago
5

Coral bleaching can be hazardous to some fish species because

Biology
1 answer:
ser-zykov [4K]3 years ago
7 0
Coral Bleaching is hazardous to fish because It leaves fish and corals vulnerable to deseases.And the average temperature of tropical oceans increases by 0.1 degrees C, over the past century.Fish are affected because, most fish in the ocean live in coral reffs, which end up dying, and leaving its habitant fish without a home.
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How would both the results of the hershey–chase experiment and conclusions drawn have been different if the viral dna had been a
Gnesinka [82]

Answer:

The bacterial pellet would have contained both isotopes, making it unclear which substance was the genetic material.

Explanation:

Bacteriophages are viruses that infect bacteria, those of the even T series (T2, T4 and T6). Hershey and Chase work with viruses that attack the enterobacteria Escherichia coli. Bacteriophages consisting of DNA viruses with a protein coat (capsid)

The infection process is that the virus injects its DNA into the bacteria. This viral DNA is inserted into the bacteria's DNA, which begins to make new copies (offspring) of the virus. After 25 minutes of injecting the DNA, the bacteria (host cell) explode, releasing hundreds of new bacteriophages. Since phages have only DNA and proteins, they were the appropriate tool to reveal the chemical nature of the hereditary material.

In 1952, Hershey and Chase designed an experience to find out if the inheritance was communicated by DNA or by proteins. They used radioactive labeling techniques to build two different types of phage populations (both T2). A population of phages grew in a medium containing the radioactive isotope S35. The S35 marks the proteins that contain the amino acids cysteine ​​or methionine and therefore this population contains radioactive proteins and not radioactive DNA, since the DNA does not contain sulfur. The second population of virus grew in a medium containing P32. P32 marks nucleic acids, but not proteins, so that this population contains radioactive DNA and non-radioactive proteins. Both types of viruses were used separately to infect susceptible E. coli cells.

4 0
3 years ago
These are protein based substances secreted by endocrine glands which serve as chemical messengers in response to altered condit
Nina [5.8K]
<span>Hormones are protein-based substance that are secreted by endocrine glands. They serve as a way to transport information from one part of the body to another in order to regulate.</span>
5 0
3 years ago
In response to a drop in overall blood pressure, __________ stimulates constriction of the glomerular inlet and even greater con
Lady bird [3.3K]

According to the research, angiotensin II (A) stimulates constriction of the glomerular inlet in response to a drop in overall blood pressure.

<h3>What is angiotensin II?</h3>

It is a potent vasoconstrictor derived from the effect of angiotensin converting enzyme on angiotensin I.

It acts directly on the arterioles and by stimulating the secretion of aldosterone; for example, it increases extracellular volume and peripheral vascular resistance.

Therefore, we can conclude that according to the research, angiotensin II (A) stimulates constriction of the glomerular inlet in response to a drop in overall blood pressure.

Learn more about angiotensin II here: brainly.com/question/13397581

#SPJ1

3 0
2 years ago
Explain how you could determine which individuals were heterozygous by looking at the gel
crimeas [40]
You can determine which individuals were heterozygous by looking at the gel becuase it refers to a specific genotye in the punnet square table
3 0
3 years ago
What is the best description of chromosomes by the end of metaphase II of meiosis?
Ugo [173]
I believe the answer would be B where the condensed chromosomes line up at the equator of the cell. 
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4 years ago
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