1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stellarik [79]
3 years ago
13

Why do A and T (and G and C) pair in a DNA double helix?

Chemistry
2 answers:
Zigmanuir [339]3 years ago
6 0
<span>hydrogen bonds form between them </span>
andrew11 [14]3 years ago
5 0

Answer:

Hydrogen bonds form between them.

Explanation:

The two strands of DNA bond through the hydrogen bridges between the nitrogenous bases. Adenine forms 2 hydrogen bridges with thymine, while cytosine and guanine form 3 hydrogen bridges. Since hydrogen bonds depend on strict standards of hydrogen bond donors and receptors, and because these structures must be in the right places, hydrogen bonding requires complementary chains of adenine and thymine, and cytosine and guanine.

You might be interested in
The backbone of nucleic acids consists of
V125BC [204]

Answer:

c. a phosphodiester bond between the 3' and 5' hydroxyl groups of neighboring sugars

Explanation:

Phosphodiester bond is the bond which is formed between the hydroxyl group of one nucleotide to the phosphate group of the another nucleotide. These are ester bonds. These bonds are central to all the life which is in existence on Earth. These bonds forms the backbone of the strands of the nucleic acid.

The bond is formed by the linkage of 3' carbon atom of one of the sugar unit to the 5' carbon atom of the another succeeding sugar unit.

<u>Hence, the answer is:- c. a phosphodiester bond between the 3' and 5' hydroxyl groups of neighboring sugars</u>

4 0
3 years ago
Get me the answers please
shutvik [7]

Answer:

a is a opinon answer

Explanation:

3 0
3 years ago
Read 2 more answers
What is the electron configuration of an electrically neutral alkaline earth metal? please explain​
vlabodo [156]

Answer:

The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (see Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns

8 0
3 years ago
What is activation energy?
Flauer [41]
The only answer we can choose
<span>B.
energy needed to break chemical bonds.</span>
5 0
3 years ago
Read 2 more answers
If an automobile air bag has a volume of 11.7 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact
Usimov [2.4K]

Answer:

33.95 grams of NaN3

Explanation:

Number of moles of NaN3 = mass (m)/MW = m/65 mole

I mole of NaN3 requires 22.4L air bag

m/65 mole of NaN3 required 11.7L

22.4m/65 = 11.7

22.4m = 65×11.7

22.4m = 760.5

m = 760.5/22.4 = 33.95grams of NaN3

5 0
3 years ago
Other questions:
  • Consider the chemical equation below. Upper M g (upper O upper H) subscript 2 plus 2 upper H upper N upper O subscript 3 right a
    10·2 answers
  • How are elements arranged in the periodic table?
    12·2 answers
  • Describe the two eukaryotic animal cell organelles that have roles similar to the organs of the human digestive system.
    14·1 answer
  • How is geometrical symmetry related to the polarity of a molecule?
    11·2 answers
  • In an oxidation-reduction reaction, the reducing agent In an oxidation-reduction reaction, the reducing agent gains electrons an
    13·1 answer
  • 1. As elements go across from left to right in a period,
    9·1 answer
  • Write complete electron configuration for each of the
    8·1 answer
  • What would be the bond order for He 2 2- molecule
    15·1 answer
  • Which of the following statements is one
    10·1 answer
  • Which element in Group 17 is the most active nonmetal? (1) Br (2) I (3) Cl (4) F
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!