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
Nonamiya [84]
3 years ago
5

Describe how nucleic acid basis pair up

Chemistry
1 answer:
castortr0y [4]3 years ago
7 0

The rules of base pairing (or nucleotide pairing) are: A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T) C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)

The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together.

You might be interested in
Help me please I need to know
rjkz [21]
C- Electron
A-Nucleus 
B-Neutron
D-Protron
7 0
3 years ago
0.103 g of Zn(s) is combined with 50.0 mL HCl in a reaction vessel, the temperature changes from 22.5oC to 23.7oC. What is the Δ
Margarita [4]
Given:

0.103 grams of Zinc (solid) 
50 ml of HCl
Density of HCl = 1.0 g/mL
Initial Temperature (Ti) = 22.5 C
Final Temperature (Tf) = 23.7 C

Solve for the mass of HCl:

50 mL * 1.0 g/mL = 50 g

Assume that the Cp for HCl is similar to the Cp of water:

q = mCpdT
   = mCp (Tf - Ti) 
   = 50 g * 4.18 J/gC * (23.7 - 22.5)
q = 250.8 J = H
6 0
4 years ago
I’ll give 5 stars and Brainliest plus this is 20 points lol
Daniel [21]

Answer:

I think is b

Explanation:

4 0
3 years ago
Most of the world’s energy comes from what three sources?
Simora [160]

Answers:

Most of the world’s energy comes from what three sources?

Oil, coal, and gas.

These energy sources are called <u>fossil</u> fuels and they are <u>non-renewable</u> resources.

Fuel type: oil

How it's formed: from the remains of ancient marine organisms

Its uses: transportation, industrial power, heating and lighting, lubricants, petrochemical industry, and use of by-products

Fule type: coal

How it's formed: when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial

Its uses: electricity generation, metal production, cement production, chemical production, gasification, and other industrial uses

Fuel type: gas

How it's formed: decomposed organic matter mixed with mud, silt, and sand on the seafloor

Its uses: heating & cooling buildings, cooking foods, fueling vehicles, and electricity generation

5 0
3 years ago
Why are the results of a neutralization reaction not always neutral
Sergeu [11.5K]
Because some of these reactions are reversible, as both the reactants and products are in the reaction medium so they can recombine together
8 0
3 years ago
Other questions:
  • What occurs as energy is transferred through the convective zone of the Sun? Check all that apply.
    9·2 answers
  • Which of the following phase changes involves a decrease in entropy?
    7·2 answers
  • How does the chemical reactivity of halogens compare with that of the noble gas family
    5·1 answer
  • PLEASE HELP!!!
    10·1 answer
  • How many complete wavelengths are present in the sound wave shown?
    15·1 answer
  • How does elevation affect the amount of air pressure?”.
    15·1 answer
  • WILL GIVE BRAINLIEST!!!
    14·1 answer
  • How many grams of C2H6 are needed to react with 54 grams of O2?
    9·1 answer
  • How to calculate atomic mass of sodium ?(in process)​
    12·1 answer
  • Sample Response: Sponges release sperm into the water so that they can be drawn into another sponge. When this happens, a sperm
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!