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
spin [16.1K]
3 years ago
12

How did the first DNA formed

Chemistry
2 answers:
uysha [10]3 years ago
7 0

Answer:

organic molecules were synthesized in the beginnings of earth and rained down into the oceans. RNA and DNA molecules are just long chains of simple nucleotides that can live in hazardous conditions

blsea [12.9K]3 years ago
6 0
Experiments suggest that organic molecules could have been synthesized in the atmosphere of early Earth and rained down into the oceans. RNA and DNA molecules — the genetic material for all life — are just long chains of simple nucleotides. Replicating molecules evolved and began to undergo natural selection.
You might be interested in
Simple question ill name u brainiest
BigorU [14]

Answer:

Test tube :)

Explanation:

4 0
3 years ago
Read 2 more answers
How much water must be added to make a 1.0 M solution from 250. mL of a 2.75 M solution?
Stels [109]
700 mL ....................
4 0
2 years ago
List in ascending order the different layers of atmosphere, their heights, and main their features. Help please!!! :•)
Anika [276]

Answer:

Troposphere

Stratosphere

Mesosphere

Thermosphere

Exosphere

Explanation:

These are all listed in ascending order, hope this helps!

6 0
3 years ago
Write a balanced formation equation at standard conditions for the compound HI.
allsm [11]
H₂(g) + I₂(s) = 2HI(g)
8 0
3 years ago
Read 2 more answers
Serine has pka1 = 2.21 and pka2 = 9.15. use the henderson-hasselbalch equation to calculate the ratio neutral form/protonated fo
malfutka [58]
Calculate the ratio by using Henderson-Hasselbalch equation:

pH = pKa + log [neutral form] / Protonated form

3.05 = 2.21 + log [neutral form] / [Protonated form]

3.05 - 2.21 = log [neutral form] / [Protonated form]

0.84 = log [neutral form] / [Protonated form]

[neutral form] / [protonated form] = anti log 0.84 = 6.91
8 0
3 years ago
Other questions:
  • Melissa uses a sunscreen with an spf rating of 20. what does this does this mean?
    7·1 answer
  • I have an unknown volume of gas at a pressure of 0.5 atm and a temperature of 325k if I raise the pressure to 1.2 atm, decrease
    10·1 answer
  • Hi, i need help.. please
    14·1 answer
  • An ion can be created when a .................... is lost or gained by an element.
    7·1 answer
  • Astronauts go to live on the International Space Station for a period of ________ month(s). A one B three C six D nine
    5·1 answer
  • When you mix water and salt you get a. ​
    8·1 answer
  • Answer please i need it
    13·1 answer
  • Which one is true? Elements in the same row have the same number of:
    10·1 answer
  • How many molecules are in 3.5 moles of hydrogen
    11·1 answer
  • a 1. The electron configuration a particular metal contena de is [Ar]3d a) Identify the Corresponding metal b) write the electro
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!