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]
3 years ago
7

The two strands of dna are hold together by

Biology
1 answer:
yulyashka [42]3 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
The attatched image has the questions, Zoom in to read if necessary.
Vilka [71]

Answer: ALSO IF YOU DONT HAVE A ACTIVITY SLIDE ( It shows what your doing or makes you do a activity or it can make you do research)   FOR THIS YOU MIGHT NOT UNDERSTAND THE ANSWER!

Explanation:

Look at the screenshot and hope this helps! Zoom in the screenshot if needed! ^^

7 0
2 years ago
If a cell is placed in an isotonic medium, there will be no net movement of water. True or false?.
ASHA 777 [7]

It is true.

<h3>What is isotonic medium?</h3>
  • A solution that has the same amount of salt as cells and blood. In hospitalized patients, isotonic solutions are routinely utilized as intravenous fluids.
  • When a cell is immersed in an isotonic solution, there is no net movement of water into or out of the cell, and the volume of the cell remains constant.
  • Isotonic solutions include 0.9% normal saline and lactated ringers. A hypertonic solution is one that has a greater solute concentration than the solution across the semi-permeable barrier.
  • The isotonic solution allows the cells to move water and nutrients in and out of the cells. This is necessary for the blood cells to perform their function of supplying oxygen and other nutrients to other parts of the body.

To learn more about isotonic solutions from the given link

brainly.com/question/19464686

#SPJ4

7 0
8 months ago
Please hurry! Amy swims 72 laps each day in the YWCA pool. Each lap is 25 meters. How many Kilometers does she swim each week?
seropon [69]

Answer:

12.6 kilometers

Explanation:

4 0
3 years ago
Read 2 more answers
!!HELP PLEASE!!
Bogdan [553]

The whale's flipper and tail flukes and fish fins are analogous structure as they have different structural formation but they perform the same function.

Flipper and tails are locomotory organs in the whale  and helps the whale in propelling similarly fins in the fish assist the fish in swimming. Both the strcutures have evolved differently and are made of different materials.



4 0
2 years ago
Differentiated cells in a multicellular organism tend to behave differently from stem cells. The process of differentiation alte
anzhelika [568]

Given what we know, we can confirm that the process of differentiation alters the cells by changing the expression of genes in a cell.

<h3>What is differentiation?</h3>
  • differentiation is when a cell becomes specialized.
  • This is the case with heart or digestive cells.
  • Since all cells carry the same DNA, this does not account for differentiation.
  • Instead, this is achieved by changing the expression of genes in a cell.

Therefore, we can confirm that differentiation is what we refer to as a cell becoming specialized in one way or function, such is the case with heart cells or digestive cells, and since all cells in the body carry the same DNA, this is done by changing the way in which the cells express their genes in the DNA.

To learn more about differentiation visit:
brainly.com/question/6977275?referrer=searchResults

8 0
2 years ago
Other questions:
  • Please help check my answers
    9·1 answer
  • What mineral composition is most characteristic of intermediate rocks?
    6·1 answer
  • Based on the banding patterns how many sites tested positive for carp
    15·1 answer
  • Through which of the following will a light wave travel the fastest?
    6·2 answers
  • Why is osmosis important to the survival of a cell
    13·2 answers
  • What do the letters in each box of of punnett square tell you?
    11·2 answers
  • Is the second step in the scientific method
    11·1 answer
  • If a man with one dominant gene for Huntington’s disease marries a women who has no genes for the disease, what is the probabili
    12·1 answer
  • This flower has male and female reproductive parts. Identify the flower’s male reproductive parts.
    14·1 answer
  • In flowering plants female gametophyte is located in the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!