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Fofino [41]
3 years ago
13

Which intermolecular force is primarily responsible for base pairing, and stability, of the double helix in dna? dipole-dipole h

ydrogen bonds covalent bonds ion-ion london dispersion forces?
Chemistry
2 answers:
ladessa [460]3 years ago
5 0

Hydrogen bonds

Guanine-cytosine and adenine-thymine <em>hydrogen bonds</em> hold the strands of a DNA helix together.

Brut [27]3 years ago
3 0

Answer:

Hydrogen bonds

Explanation:

Hydrogen bonds are the intermolecular forces responsible for base pairing and double helix stability in DNA.

The hydrogen bonds that bind the two strands of DNA are “weak” covalent bonds, meaning they easily denature, which means that they separate and reconnect very easily.

Regarding the nitrogenous bases of DNA, Adenine is paired with Thymine, forming the A-T base pair, and there is double hydrogen bonding between these bases. In the same way that guanine binds to cytosine and forms the base pair G-C by triple hydrogen bonding. And the two chains link through weak hydrogen bridges between the nitrogenous bases of nucleotides, responsible for maintaining the double helix structure of DNA.

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Justin B. Believes that the temperature lowering during the fall months is what causes the color of the leaves to change. He set
Taya2010 [7]

Answer:

This question is incomplete, the remaining part of the question is:

What is the control group, independent variable and dependent variable?

Control group: Plants placed in 80 degree rooms

Independent variable: Change in temperature

Dependent variable: Change in color of leaves

Explanation:

The independent variable in a scientific experiment is the variable that the experimenter controls or manipulates in order to bring about a change in the dependent variable. In this experiment, the variable manipulated by Justin B is the TEMPERATURE CHANGE.

On the other hand, a variable is said to be dependent if it is the variable that responds to a change made to the independent variable or rather it is the outcome. In this experiment, Justin B is trying to see the outcome on the color change in leaves when exposed to a low temperature, hence, COLOR CHANGE IN LEAVES is the dependent variable.

Control group of an experiment is the group that receives no experimental treatment. It is the group the experimenter considers normal and hence is comparing with his experimental group. In this experiment, Justin B believes the leaves change color in a low temperature, hence, he placed some plants in a lower temperature (60 degree) in order to compare them with when the plants are placed in a higher temperature (80 degree). As far as this experiment is concerned, the plants placed in 80 degrees temperature are believed by Justin B not to undergo color change, hence, they are the CONTROL GROUP while the group he placed in 60 degrees temperature are what he is interested in, making them the EXPERIMENTAL GROUP

5 0
3 years ago
If you have a voltage of 120 volts entering your house and a light bulb with 0.625 amperes flowing through it, how many watts is
Luba_88 [7]

Answer:

75 watts

Explanation:

4 0
3 years ago
Read 2 more answers
Dipole-dipole interactions are (weaker than, stronger than, equal to) hydrogen bonds.
kozerog [31]

Answer and Explanation:

Dipole-Dipole interactions are <u>weaker than</u> hydrogen bonds.

Hydrogen bonds are a form of dipole-dipole interactions, being the strongest form of dipole-dipole interactions.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

7 0
2 years ago
Which substance/s have covalent bond? Explain your answer.​
Viefleur [7K]
Covalent bonding occurs when electrons are shared between atoms. Double and triple covalent bonds occur when four or six electrons are shared between two atoms, and they are indicated in Lewis structures by drawing two or three lines connecting one atom to another.
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3 years ago
Which substance is most likely metallic
Montano1993 [528]
I don’t know “which substance” are you talking about??

You can put the picture there so we can see.
8 0
3 years ago
Read 2 more answers
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