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Umnica [9.8K]
3 years ago
6

Which of the following statements about base pairing in DNA is incorrect?

Biology
1 answer:
almond37 [142]3 years ago
8 0

Answer:

Adenine binds to guanine.

Explanation:

Rules of the base pairing are:  

A with T

Purine base, adenine (A) pairs with the pyrimidine base, thymine (T).

C with G

Pyrimidine base, cytosine (C) pairs with purine base, guanine (G).

<u>(Option A is correct). </u>

<u>(Option B is incorrect). </u>

Nitrogenous bases are positioned in the inside helix structure like the rungs of a staircase due to hydrophobic effect and are stabilized by hydrogen bonding.  

<u>(Option C and D is correct). </u>

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Answer:

The diagram is attached below.

Explanation:

when sodium and chlorine comes close together they form anion and cation. The compound formed is called sodium chloride.

Both atoms bonded together through ionic bond.

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion.

7 0
3 years ago
Muscles that move the eyeball have ________ fibers.
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Muscles which are responsible for the movement of the eyeball have fast fibers. Thus, the correct option is A.

<h3>What are fast muscle fibers?</h3>

Fast-twitch muscle fibers are the muscle fibers which provide bigger and more powerful forces, however for shorter durations and fatigue quickly. They are more anaerobic with less blood supply, and hence are sometimes also referred to as white fibers or type II fibers.

Fast-twitch muscle fibers are activated by the high intensity movements which are sustained in short bursts. Examples of movements include sprints, burpees, and quick lateral movements.

Therefore, the correct option is A.

Learn more about Eyeball here:

brainly.com/question/10945999

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Your question is incomplete, most probably the complete question is:

Muscles that move the eyeball have ________ fibers.

A) fast

B) slow

C) intermediate

D) circular

E) All of the answers are correct.

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1 year ago
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4. microorganisms. pls give me brainliest thanks

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A

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The structure of ATP is such that there are three (3) phosphate moelcules in sequence attached to the 5’ carbon of the ribose sugar ring. The O- groups of each phosphate are close to each other and are negatively charged. They, therefore, repel each ohtehr electrostatically and make ATP very unstable – hence considered weak bonds. ADP is more stable than ATP.  Nonetheless, phosphoanhydride bonds between the phosphate have high energy of ΔG of -30.5 kJ/mol. These characteristic make ATP ideal as ane energy currency since it is easy to hydrolyze while producing much energy.

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