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
alex41 [277]
4 years ago
7

The two strands of dna are hold together by

Biology
1 answer:
yulyashka [42]4 years ago
5 0

Answer:

Weak hydrogen bonds and Covalent Bonds

Explanation:

The DNA double helix is held together by two types of bonds, covalent and  hydrogen. Covalent bonds occur within each linear strand and strongly bond the  bases, sugars, and phosphate groups (both within each component and between  components). Hydrogen bonds occur between the two strands and involve a base  from one strand with a base from the second in complementary pairing. These  hydrogen bonds are individually weak but collectively quite strong

You might be interested in
Can you help me with biology?
Mekhanik [1.2K]

Answer:

I wanna nucleotides

Explanation:

6 0
3 years ago
When did arundant fossil evidence first appear in the geologic record
Delvig [45]
<h2>540 million years ago </h2>

Paleozoic.

Era immediately follows Precambrian It lasted about 4.5 billion years.

When did abundant fossil evidence first appear in the geologic record.

540 million years ago.

7 0
3 years ago
Explain how the biosphere facilities movement of water from the geosphere to the atomosphere.
omeli [17]

Answer:

Explain how the biosphere facilitates movement of water from the geosphere to the atmosphere. The biosphere includes all living components of the Earth. ... Water from the plants is incorporated into the atmosphere through a process called transpiration, where water from the plant evaporates and enters the atmosphere.

6 0
3 years ago
Which is not a statement of the cell theory? Cells are the basic unit of life. O Cells are the basic unit of matter Cells come f
Scorpion4ik [409]

Answer:

Cells are the basic unit of matter is the correct answer.

Explanation:

The other answers are all a part of the cell theory, but that one is NOT and since the question is asking for the incorrect one, that's the answer. :)

8 0
3 years ago
Which characteristic involves cleavage and fracture?
Anarel [89]

The Answer Is A. Hope This Helps ;P

6 0
3 years ago
Read 2 more answers
Other questions:
  • Proteins are made where in the cell
    6·1 answer
  • Put the following terms in order of decreasing size
    15·1 answer
  • Biogeographic isolation leads to _________, the formation of a new species.
    8·2 answers
  • The pressure that must be exerted onto a solution in order to prevent water from diffusing into that solution through a semiperm
    15·1 answer
  • Are the organelles that house the equipment for doing photosynthesis
    14·1 answer
  • In a stage of the cell cycle, the cytoplasm of the cell divides to form two separate cells. Which stage of the
    8·1 answer
  • In this excerpt from Edgar Allan Poe's "The Raven," what does the biblical reference to the healing “balm in Gilead” signify?
    14·2 answers
  • What moves through the community from one trophic level to another as organisms feed on one another?What moves through the commu
    6·1 answer
  • How much of our body is made of muscle? What does this muscle do?
    11·2 answers
  • Select the correct location on the image.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!