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
Paraphin [41]
3 years ago
14

What type of bond holds the nitrogenous bases together?

Biology
1 answer:
inysia [295]3 years ago
6 0

Answer:

A. Hydrogen

Explanation:

Adenine and thymine form two hydrogen bonds.

You might be interested in
Which way of organizing DNA best ensure that the information contained on each strand can be accessed
eduard

The information stored in the order of bases is organized into genes: each gene contains information for making a functional product. The genetic information is first copied to another nucleic acid polymer, RNA (ribonucleic acid), preserving the order of the nucleotide bases. Genes that contain instructions for making proteins are converted to messenger RNA (mRNA). Some specialized genes contain instructions for making functional RNA molecules that don’t make proteins. These RNA molecules function by affecting cellular processes directly; for example some of these RNA molecules regulate the expression of mRNA. Other genes produce RNA molecules that are required for protein synthesis, transfer RNA (tRNA), and ribosomal RNA (rRNA).

8 0
3 years ago
In two or more complete sentences describe a procedure to increase the deposition of sediment at the mouth of a stream.
ludmilkaskok [199]

Answer:

one way to increase the deposition is to decrease the amount of vegetation living near the stream. This then causes erosion of all the sediment near the stream.The stream then carries all the loose sediment.

4 0
3 years ago
Which of the following cells engulf antigens and present fragments of them on their own surfaces for recognition?
Lina20 [59]

Answer:

c. dendritic cells

Explanation:

An antigen presenting cell like dendritic cell is a part of adaptive immune system. When it encounters a harmful foreign antigen, it engulfs it via phagocytosis. The phagocytic vesicle fuses with the intracellular lysosome and here the antigen is broken into smaller fragments. With the help of MHC complex, these fragments are presented on the surface of dendritic cell hence it becomes an antigen presenting cell. This cell is then recognized by other cells of immune system like lymphocytes and destroyed.

Dendritic cells are present in skin and lining of lungs, nose, stomach, intestines. In skin they are called as Langerhans cells. Macrophages are another type of antigen presenting cells.

3 0
3 years ago
Que nombre reciben los materiales que conducen bien la carga electrica
m_a_m_a [10]

Answer:

Los metales, El oro y La Plata

Explanation:

8 0
3 years ago
The nutrient that is essential to cellular construction, reproduction, and maintenance
mario62 [17]
Protein is the nutrient that is essential to cellular construction, reproduction, and maintenance. 
6 0
3 years ago
Other questions:
  • Which of the following is not a possible cause of erosion? a. burrowing animals b. gravity c. water d. none of the above
    12·2 answers
  • What does a cost benefit indicate
    12·1 answer
  • What kind of neuron is used in 3 types of gasses
    11·1 answer
  • How many stars are in space
    7·2 answers
  • Spanish influenza is thought to be caused by
    5·2 answers
  • What happens if there are many producers
    6·1 answer
  • The what in the brain is divided into two hemispheres <br><br><br>help fast​
    10·1 answer
  • celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution b
    14·1 answer
  • Which makes fast-moving water a greater force of erosion?
    8·2 answers
  • PLSS HELP ME WITH THIS IMMEDIATELY!!! ILL MARK U BRAINIEST IF U DONT LEAVE A LINK OR GUESS!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!