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
nata0808 [166]
3 years ago
7

It has been recently determined that the gene for Duchenne muscular dystrophy (DMD) is more than 2000 kb (kilobases) in length;

however, the mRNA produced by this gene is only about 14 kb long. What is a likely cause of this discrepancy?
(A) More amino acids are coded for by the DNA than by the mRNA.
(B) The exons have been spliced out during mRNA processing.
(C) When the mRNA is produced, it is highly folded and therefore less long.
(D) The introns have been spliced out during mRNA processing.
(E) The DNA represents a double-stranded structure, whereas the RNA is single-stranded.
Biology
1 answer:
castortr0y [4]3 years ago
7 0

Answer. D

Explanation:

After the messenger RNA (mRNA) is formed, it has to go trough different steps before being translated into proteins, also known as maturation of the mRNA. One of the most important steps is splicing, a process that removes the introns (regions of the sequence that do not codify for any particular amino acid sequence or protein). In other words, the splicing process removes sequences that do not generate any protein, leaving only the exons to be translated into protein. However, the genes (within our DNA) will contain exons and introns; Therefore, the gene sequence will have more kilobases compared to mature mRNA as the introns in this macromolecule have been spliced out.  

I hope this clarify your question .

You might be interested in
chrosomes are found insise the______ of a cell. They are ______ pairs of chromosomes in every human body cell. One of each pair
RoseWind [281]

Answer:

23 pairs nucleus parents and dna

i know that the 23 pairs is right and i also think that the rest is right to

5 0
3 years ago
________________ are the body's adverse reaction to introducing an excessive amount of a toxic substance into the system.
EleoNora [17]

Hangover

Hangover is unpleasant psychological and physiological effect experienced after consumption of alcohol such as distilled spirit and wine. Hangover usually developed after 6-8 hours and last or 24 hours. Furthermore, hangover, symptoms are related to blood alcohol concentration which is the amount of alcohol present in a person’s blood.

7 0
3 years ago
Read 2 more answers
Based on the food web below, which of the following is a consumer?
kogti [31]

a herbivore? feeding on plants

8 0
3 years ago
Read 2 more answers
Negative feedback in reflex loops __________. is responsible for triggering the response to the stimulus is "negative" because i
kirill [66]

Answer:

is common because it promotes homeostasis

Explanation:

The negative feedback loop is a mechanism wherein a change in some condition stimulates a response to counteract the changed condition and thereby, the homeostasis is restored.

For example, an increased blood glucose level above its homeostatic level stimulates the secretion of insulin hormone from the pancreas which in turn stimulates the absorption of glucose from the blood into the cells (specifically the liver and muscle cells) and thereby restores the normal blood glucose levels.

Most of the processes in the human body are regulated by negative feedback loops to maintain the homeostasis.

4 0
3 years ago
Why is meiosis/sexual reproduction important to the survival of a species?
MariettaO [177]

Its important because they produce offspring. Without any offspring the species would slowly die off and become extinct.

3 0
2 years ago
Other questions:
  • A client comes into the emergency room (er) after hitting his head while playing basketball. he is alert and oriented. which is
    11·1 answer
  • DNA is described as a double helix or a twisted ladder?
    14·2 answers
  • Normally, when a neuron is not transmitting information and a slight negative charge is present on the inside of the cell membra
    14·1 answer
  • If a meal supplies 110 g of carbohydrates, 25 g of protein, 20 g of fat, and the equivalent of 5 g of alcohol, what % of the kca
    9·1 answer
  • Prokaryotic cells in a scenince
    12·1 answer
  • The younger layer of rock in the grand canyon are on top of the older layers. which of steno's principle best explains this
    15·2 answers
  • What is the first thing to appear in secondary succession?
    8·1 answer
  • Jason has five equally massed lead fishing weights, each weighing 250 grams. What is the total mass of the five lead fishing wei
    10·2 answers
  • When does DNA synthesis occur?
    14·1 answer
  • The polysaccharide that is responsible for the strong structural nature of plant cell walls is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!