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d1i1m1o1n [39]
3 years ago
5

What holds the two strands of a DNA molecule together?A. Ionic bonds between negatively and positively charged ionsB. Covalent b

onds between sugars and phosphatesC. Brüno's interactionsD. Hydrogen bonds between complementary base pairs
Chemistry
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

D. Hydrogen bonds between complementary base pairs89

Explanation:

A DNA molecule is composed of two long polynucleotide chains made of four types of nucleotide subunits, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). These nucleotides are joined by covalent bonds forming a phosphate-sugar backbone. <em>These strands are held to one another with hydrogen bonds between the base portions of complementary nucleotides.</em>

I hope you find this information useful and interesting! Good luck!

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What is needed for photosynthesis to take place? (Select all that apply.)
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Explanation:

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2. Describe How are the two forms of energy<br> carried by waves and matter related?
Kazeer [188]

Answer:

the energy of matter implies the motion of masses and the energy of the wave has no moving masses

The energy of the particles (matter) is the ability to do some work, therefore the energy can be of motion in the form of kinetic energy or in a configuration of the system called potential energy, the sum of these two energy is constant .

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7 0
2 years ago
Rifampin has a long aliphatic chain forming a bridge between an aromatic moiety (naphthaline).
lesya692 [45]

Answer:

True

Explanation:

Question - Rifampin has a long aliphatic chain forming a bridge between an aromatic moiety (naphthaline).

Solution -

It is a true statement.

So,

The correct option is - True.

Reason -

Rifampin has a long aliphatic chain forming a bridge between an aromatic moiety (naphthaline)

7 0
3 years ago
Milk of Magnesia is a type of medication people can take to help with heartburn and indigestion cause by stomach acid.
Burka [1]

Answer:

This substance is basic.

Explanation:

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3 years ago
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