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ale4655 [162]
3 years ago
7

What are introns and Exons??

Biology
1 answer:
jeka943 years ago
3 0
Introns are parts of genes that do not directly code for proteins. (2)

Exons are parts of DNA that are converted into mature messenger RNA (mRNA). (6) The process by which DNA is used as a template to create mRNA is called transcription.
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For which of the following processes can dideoxyribonucleotides be used?
mel-nik [20]

Answer:

Sequence a DNA fragment.

Explanation:

Dideoxyribonucleotides may be defined as the DNA molecule that lacks hydroxyl group at 2 and 3 position of the pentose sugar. These molecule are important in the molecular biology.

The sequencing of a DNA fragment means to determine the sequence of the nucleotides in a DNA molecule. The  dideoxyribonucleotides is used to tag the target DNA fragment and known the sequence of the target DNA molecule.

Thus, the correct answer is option (C).

8 0
3 years ago
How do the respiratory system and the circulatory system work together the maintain homeostasis
barxatty [35]

Answer:

The Respiratory system allows entry of oxygen into the body and release Carbon Dioxide. The Oxygen travels across lung tissue into blood vessels and the blood carries the oxygen around the body. Thus the Respiratory and Circulatory system work together in gas exchange which is vital in Homeostasis

5 0
3 years ago
If a particular cell is known to be round and incapable of producing its own food, which one of these organelles would you assum
UNO [17]

If a particular cell is known to be round and incapable of producing its own food, such a cell would not be a plant cell. As such, from the options below:

  • <em>CENTRAL VACUOLE </em>
  • <em>plasma membrane </em>
  • <em> cell wall </em>
  • <em> chloroplast</em>

The correct answer as to which of the organelles the cell must have would be the plasma membrane.

  • central vacuole, cell wall, and chloroplast are all characteristic of plant cells.
  • All cell types have plasma membrane.

Hence, since it has been established that the cell is not a plant cell, the only organelle left that the cell cannot do without is the plasma membrane.

More on cell organelles can be found here: brainly.com/question/23802482

8 0
3 years ago
Drip irrigation provides precise amounts of water directly to crop roots. This method is one of the mainstays of sustainable agr
Vsevolod [243]
Drip method is one of the mainstays of sustainable agriculture because it : A. reduces soil erosion
Like the name said, Drip irrigation is designed to utilize the least amount of water supply by giving the water to the plant drip by drip. In this method, there is no flow of water that commonly caused the soil erosion (because the water flow cut out the soil little by little)

4 0
3 years ago
Read 2 more answers
Of the species below, only ________ is not an electrolyte.
Tems11 [23]
C- argon 
This is because, an electrolyte is a solution that conducts electricity due to the presence of ions, and since argon is an atom and not an ion, it cannot conduct. Thus, it is a non-electrolyte
8 0
3 years ago
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