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
Cerrena [4.2K]
3 years ago
14

Which of the following describes the molecular structure of a DNA molecule?

Biology
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

D

Explanation:

elena-s [515]3 years ago
5 0
A double helix, looks like a twisted ladder.
You might be interested in
What organic molecules must be included in the soil for earthworm nutrition?
tankabanditka [31]

<span>The organic molecules that must be included in the soil for earthworm nutrition are Neutral pH. A neutral pH substance that is neither basic nor acidic is considered neutral. The pH scale is the one that measures how a substance is basic or acidic. It ranges from 0-14. A 7 pH is neutral.</span>

6 0
3 years ago
Read 2 more answers
Which of the following statements best provides evidence of the big bang theory?
Oxana [17]

Answer: D. Galaxies show a red shift, indicating they are moving away from each other.

Explanation:

Galaxies seem to show a red shift which indicates that the galaxies are moving away from each other. This provides evidence for the Big Bang theory because the theory posits galaxies will keep moving away from each other.

This is because when an explosion happens, matter moves away from the point where the explosion happened. If the Big Bang happened therefore, galaxies will move away from the source which is why galaxies are moving away from each other.

6 0
3 years ago
4. Which is an example of mechanical weathering?
belka [17]
I would say A or C I’m not sure but if I had to choose A or C my best guess would be A


I hope this helps :)
7 0
3 years ago
Read 2 more answers
The liver forms glucose from noncarbohydrates. stores vitamin
Viefleur [7K]
<span>The propositions are:
a. forms glucose from </span><span>noncarbohydrates
b. does all of these
c. destroys damaged red blood cells
d. stores vitamin D
e. forms urea

The right answer is: B. </span>does all of these

*The liver plays a role in the metabolism of carbohydrates:- gluconeogenesis (manufacture of a new glucose molecule from a non-carbohydrate molecule);- glycogenolysis (release of glucose from glycogen) under the effect of glucagon;- gluconeogenesis (storage of glucose in the form of glycogen) under the effect of insulin
*It stores fat-soluble vitamins (A, D, K and E) and glycogen.*It converts ammonia to urea (detoxification)<span>*It recycles substances from the senescent red blood cells.</span>
4 0
3 years ago
A mutation that involves a single nucleotide is called.
alina1380 [7]

Answer:

Point mutations are a broad category of mutations that describe a change in a single nucleotide of DNA, such as a substitution for another nucleotide, deletion of a nucleotide, or insertion of a single nucleotide into the DNA, resulting in DNA that differs from the normal or wild type gene...

or you can say:

Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene ...

8 0
3 years ago
Other questions:
  • A surface wave on ocean surface is<br> an example of an
    12·1 answer
  • Drag each tile to the correct box .
    9·1 answer
  • According to cell theory, which are made of cells? check all that apply
    12·1 answer
  • The presence of protein in the urine indicates which of the following
    9·1 answer
  • Why are scientists concerned about species loss if extinction is a natural process
    8·1 answer
  • Are enzymes used up after they do their job of helping build a molecule or helping breakdown a molecule...or are they used again
    13·1 answer
  • All animals depend on plants for food. Some animals eat plants for food and other animals eat animals that eat plants. The plant
    7·2 answers
  • The vibrations in the primary (p) and secondary (s) seismic waves caused by earthquakes are
    15·1 answer
  • State five important of fungi in biology
    12·2 answers
  • A plant cell can be distinguished from an animal cell because of the presence of?​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!