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
Lunna [17]
3 years ago
14

What is the structure of purines and pyrimidines​

Biology
1 answer:
Nady [450]3 years ago
8 0

Explanation:

purines-Double carbon-nitrogen ring with four nitrogen atoms

pyrimidines-Single carbon-nitrogen ring with two nitrogen atoms

You might be interested in
Gila monsters are very well adapted to their homes. They have thick skin to prevent water loss and they burrow to escape the hea
baherus [9]

Answer:

Gila monsters are only found in the Sonoran, Mojave and Chihuahuan deserts in the southwestern United States and northwestern Mexico.

Explanation:

Basically a desert

4 0
4 years ago
Read 2 more answers
How do you think pollination takes place in flowering plants?
KatRina [158]
To help the plants grow
7 0
3 years ago
The ends of roots are normally covered in tiny root hair cells. what is their function?
shtirl [24]
The function of those tiny root hair cells is to speed up osmosis.

They absorb water and go from the roots to the rest of the plant.
6 0
4 years ago
Read 2 more answers
which of the following correctly describes a reaction that forms a disaccharide from two monosaccharides?
EastWind [94]

Answer Options:

a. glycogen + fructose = maltose

b. galactose + glucose = lactose

c. glucose + sucrose = fructose

d. maltose + lactose = cellulose

Answer:

b. galactose + glucose = lactose

Explanation:

Monosaccharides are single units. Disaccharides are molecules of two monosaccharides joined together.

Examples of monosaccharides include glucose, fructose, and galactose.

Examples of disaccharides include lactose, maltose, and sucrose.

The only example that shows this is b.

6 0
3 years ago
Which of the following organelles houses DNA in eukaryotic cells?
Feliz [49]
Nucleus is the correct answer. I am 100% sure
5 0
3 years ago
Other questions:
  • Which of the following types of electromagnetic radiation has the lowest frequency?
    9·1 answer
  • Think back about your experience in this lab using a dichotomous key. What might make it hard for someone to use a dichotomous k
    13·1 answer
  • Explain how soaring and gliding birds use their air currents in their flight
    11·1 answer
  • Which reason best explains why living things need carbon?
    10·2 answers
  • Write a sentence comparing and contrasting deforestation and desertification
    6·1 answer
  • Compare and contrast the rock cycle and the carbon cycle
    15·1 answer
  • Consider how sedimentary rocks are formed, from sediments! Sediments are composed of particles that often come from existing
    12·2 answers
  • Which of the following decreases the population size?
    7·1 answer
  • Why are nucleic acids essential for life
    12·1 answer
  • Will give you Brainliest if you answer all .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!