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
Yuri [45]
3 years ago
15

Why does CaCl2 need to be added to cells to make them 'competent'? Why does CaCl2 need to be added to cells to make them 'compet

ent'?
Biology
1 answer:
V125BC [204]3 years ago
8 0
DNA is a negatively-charged molecule. Also cell membranes are negatively charged. The problem would be how to push this charges together? I<span>f you put some CaCl2 into the mixture, the CaCl2 will "split" giving 2Cl- and Ca2+. This last ion will be attracted by the negatively charged DNA and will "cover" it, hiding its negative charge. Hope this answers the question.</span>
You might be interested in
The respiratory system is part of the excretory system?​
Alex

Answer:

circulatory system

Explanation:

5 0
3 years ago
Read 2 more answers
2. What does the term “-troph” mean?
Vanyuwa [196]

Answer:

an organism with nutritional requirements

Explanation:

3 0
3 years ago
Read 2 more answers
A<br> b<br> c<br> or<br> d<br><br> this one had me confused
ankoles [38]

Answer:

C

Explanation:

8 0
3 years ago
Read 2 more answers
Which organism would be numerous in the ecosystem?<br><br> Grass<br> Rabbits<br> Snakes<br> Hawks
navik [9.2K]

Answer:

I think it would be grass.

Explanation:

I am pretty sure it would be grass because there is much more grass on earth then hawks, snakes, and rabbits.

6 0
3 years ago
Read 2 more answers
Recommend an action humans could take to help prevent the extinction of tropical organisms
Art [367]

Answer:

Stop habitat destruction

Explanation:

Cutting down and burning forests basically take away the shelter, hunting grounds, and overall habitat away from many species that use the trees as a form of shelter and protection. Removing their shelter, which could be their only form of protection causes many of these organisms to die, not to mention the plants that are necessary to keep the food chain balanced.

6 0
2 years ago
Other questions:
  • Complete the statement about the environment and its components.
    9·2 answers
  • The biomes that exist closest to the Earth's poles are describes as _______.
    12·1 answer
  • The major form of fat in both food and the body is
    5·1 answer
  • A "Cuckold bee" is a common term to describe several different kleptoparasitic lineages in Apoidea.
    7·1 answer
  • Which organelle do you think is involved in autolysis? Explain
    12·1 answer
  • Complex chemical catalysts produced by living cells are enzymes.
    10·1 answer
  • Explain how the bone patterns in mammalian limbs came about, using the theory of evolution from a common ancestor
    13·2 answers
  • How are the same procesess of mitiosis and meosis simullar to each other?
    5·1 answer
  • Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which stat
    8·1 answer
  • Which describes organs in the human body?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!