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3 years ago

What interactions contribute the most to holding the two strands of dna together?

Biology

2 answers:

skelet666 [1.2K]3 years ago

6 0

Answer:

<h2>Mainly by Hydrogen bonds and the Van der Waals forces </h2>

Explanation:

The DNA double helix (both strands of DNA) are held closs together by i) mainly hydrogen bonds between complementary bases and ii) the Van der Waals base-stacking interaction.

The hydrogen bonds between the base pairs form the double helical structure of DNA. There is no exchange or sharing of electrons in hydrogen bonds.

G always pairs with C with three hydrogen bonds and T always pairs with A with two hydrogen bonds.

Lemur [1.5K]3 years ago

6 0

<h2>Answer:</h2><h2>Hydrogen Bonds</h2>

Explanation:

In DNA double helix structure , there's four nitrogen bases Adenine , Thymine, Cytosine and Guanine . Hydreogen bonds formed between these nitrogenous base in DNA . In DNA double helix , two hydrogen bonds exist between Adenine and Thymine while three hydrogen bond exist between Cytosine and Guanine . Pairing of nitrogen bases in DNA double helix is very specific and this specific and selective pairing results in 'complementary base pairing ' . Hydrogen bonds doesn't involve in sharing of electrons , it occur over short distance and it can be formed and broken easily . In DNA double helix , hydrogen bond is weaker but still contribute the most to holding the two strands of DNA together because hydrogen bonds present excessively in between the DNA double helix .

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3 years ago

What are the two ways the hypothalamus sends messages to the pituitary gland?

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4 years ago

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Murljashka [212]

$\bold{\huge{\underline{ Answers }}}$

<h3>Question :-</h3>

What else more you think about the benefits of a volcano and even it's wake

<h3>Answer 1 :- </h3>

As we all know and it is also mentioned in the above paragraph that volcanoes has some negative and positive impacts on mankind . The positive impacts mentioned in paragraph are fertile soil, pottery, spectacular secenery etc.
Some more benefits of volcanic eruption are :-

Indirectly it produces electricity . magma is generally found near the surface of earth which results in the generation of geothermal energy then this geothermal energy used for producing electricity
Magma of volcanoes contains very valuable minerals .
People are so curious about the natural phenomenon happens in the world. Volcanoes are also the one of the cause of curiosity and due to which it becomes a tourist spot. So in simple words , It contribute in the economy of countries.

<h3>Question :-</h3>

What I have learned?

<h3>Answer 2 :- </h3>

From above paragraph I learn that, Volcanic eruption have some positive as well as negative impacts on mankind but the negative impacts are the major reason of concern because volcanic eruptions are the cause of destruction of property, life ,earth etc.
People life's are more important than anything in the world because if we our alive only then we can get's the benefits of it.
Some people loss their relatives , migrated from their villages , loss their jobs and property etc. due to eruption of volcanoes.
During volcanic eruption, It is necessary to know that how can we protect our lives. For example if you are in a house then stay inside, Stay away from exposure of ash because it directly affecting your respiratory tract, If you are driving then stop your car near forests and closes all the glasses of the car and stop driving.
We should help the people those who are affected from volcanic eruption in every possible way by providing shelters, food, jobs etc.

<h3>Question 3 :-</h3>

What I still want to learn?

<h3>Answer 3 :-</h3>

Well ! There are so many things that I still have to learn but it is related to all kind of disasters facing by humans today.
The major cause of volcanic eruption is the climate change but the major of cause of the climate change are humans which is the greatest threat facing humanity today. Directly and Indirectly human activities are the causes of volcanic eruption.
So, It is necessary to know about the activities which causes volcanic eruption so that we all can minimize the effect of it.
Well, I am also curious about the positive impacts of volcanic eruption so that in future, by using advance technology I will find some preventive measures for people who lives in volcanic erupted areas and always concern about their lives . I hope , this future technology will become the reason of happiness of many people.
I don't know much about volcanic eruption so I still have to learn everything about it.

5 0

3 years ago

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Luba_88 [7]

Answer:

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Explanation:

7 0

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MakcuM [25]

It’s there conductivity meaning they are conductors, glad I helped!

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3 years ago