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
Varvara68 [4.7K]
3 years ago
10

Chapter 1: Introduction: Evolution and the Foundations of Biology 1. _______ DNA is composed of building blocks called _____. a.

Nucleic acids b. Gs c. Nucleotides d. Adenines
Biology
1 answer:
irina [24]3 years ago
6 0

Answer:

C. Nucleotides

Explanation:

Nucleic acids are macromolecules which are polymers of nucleotides. There are two types of nucleic acids namely: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleotides are the building blocks of nucleic acids.

A nucleotide is made up of three components:

- A phosphate group

- A five carbon sugar called pentose sugar. In RNA the sugar is ribose sugar and in DNA the sugar is deoxyribose sugar.

- Nitrogenous bases: There are four different types of bases in DNA: adenine, guanine, cytosine and thymine. In RNA thymine is replaced by uracil. Adenine and guanine are purines whereas cytosine, thymine and uracil are pyrimidines.

Nitrogenous base and sugar together are called nucleoside and when phosphate is also attached then it is called nucleotide.

You might be interested in
List two sources of chemical energy.
Alina [70]
Coal is a basic source of chemical energy . Wood is also a source of chemical energy . Even there are more many sources like gasoline,photosynthesis
8 0
3 years ago
In which stage of pertussis is the characteristic whooping sound made?
maksim [4K]

Answer:

paroxysmal

Explanation:

Pertussis is highly contagious and acute respiratory disease which is caused by bacteria Bordetella pertussis.

The disease has 3 types of  stages which are catarrhal stage, paroxysmal stage, and convalescent stage.

<u>The paroxysmal stage of the Pertussis is characterized by the episodes of the coughing with a distinctive sound which is known as whopping during the process of inspiration. </u>

This type of cough gives disease the common name which is called Whooping Cough.

5 0
3 years ago
Which letter correctly identifies telophase 1
TiliK225 [7]
It would be G and H because that is when the nuclear membrane forms and two new cells are formed

hope this helped :3
3 0
3 years ago
HELP ME ASAP THX
Georgia [21]

Answer:

The answer is C!

Explanation:

Hope this helps!?

3 0
3 years ago
During the twentieth century,what was added to the relative time scale
liubo4ka [24]
<span>During the twentieth century, absolute date was added to the relative time scale.  </span>Geologic time scale uses both relative and absolute dating techniques.  <span>Soon after the discovery of radioactivity, geologists used radioactive isotope decay to develop a method for determining absolute ages of rocks</span>
5 0
3 years ago
Other questions:
  • Which of these statements is not accurate, according to the text? ​ ​teenagers who don't get enough food to eat are more likely
    13·1 answer
  • What is the enzyme that restores adp back to atp?
    13·1 answer
  • What are sedimentary rocks used for in everyday life?
    14·1 answer
  • In the chemical process of photosynthesis, sunlight is primarily considered a(n) Glucose is broken down during cellular respirat
    10·1 answer
  • Skin turns white or grayish yellow
    11·2 answers
  • NOT SURE IF THEY ARE CORRECT PLS HELP
    14·1 answer
  • CB
    6·1 answer
  • Frogs are primary and secondary consumers or secondary and tertiary consumers?
    5·1 answer
  • What happens to the rocket when it slows to around 6,000km/hr
    7·1 answer
  • In the stable food chain shown below, what would you expect to happen initially if you were to suddenly double the population of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!