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
hoa [83]
2 years ago
9

Why isn't it possible for adenine to pair with cytosine or guanine?

Biology
1 answer:
IRINA_888 [86]2 years ago
5 0

Answer:

Thymine and uracil or adenine have two hydrogen bonds between them, whereas guanine and cytosine have three.

You might be interested in
Describe the functional difference between fibrocartilage and hyaline cartilage
Nesterboy [21]

huhtf7fti7f676f77f676f76f6f6f76f76ff7676i

5 0
3 years ago
This is the topographic map for these questions.
Zielflug [23.3K]
Point A: 140 meters
Point B: 140 meters
Point C: 155 meters
Point F: 165 meters
I'm sorry if I got any wrong, I hope this helped! <3
4 0
3 years ago
The kingdom Eubacteria is so called as they have a "True" nucleus.<br> True<br> False
Marta_Voda [28]
I believe false. It should be
4 0
2 years ago
I need help please ​
Temka [501]

Answer:

75 percent, 25 percent

Explanation:

5 0
3 years ago
Stellar evolution is the life cycle of a star. A cycle suggests that upon death of a star, another star is born. How is this pos
ANTONII [103]
This is possible because when a star dies, it basically expands to its maximum (explodes). Therefore, the materials of the exploded star mix with the primeval hydrogen of the Universe. Later, other stars are formed out of this mixture. Thats also how the sun was formed. :)
5 0
3 years ago
Other questions:
  • Choose three types of fossils. Describe their appearance and how they were formed. 
    5·2 answers
  • Cells require glucose as a source of energy to carry out life processes. Large molecules like glucose cross the cell's plasma me
    12·1 answer
  • I WILL MAKE YOU BRAINIEST PLZ HELP ASAP
    15·1 answer
  • Which of the following statements is true? Air pressure at the top of Mount Everest is higher than at the bottom of the Grand Ca
    12·1 answer
  • NEED HELP ASAP
    8·2 answers
  • Membranes prevent movement of most substances between the cell and the environment, but most required substances can be moved Ch
    8·1 answer
  • Given the above result, Daniel’s doctor prescribes him antibiotics to be taken for 10 days. Daniel doesn’t like to swallow pills
    13·1 answer
  • There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the pro
    12·1 answer
  • Which kind of studies are used to
    11·1 answer
  • Give two examples of density-dependent factors.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!