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
seropon [69]
3 years ago
12

Introns in pre-mRNA: a. protect pre-mRNA from enzyme degradation. b. move within the mRNA, giving rise to new exon combinations.

c. are spliced out of the message. d. code for important amino acid sequences. e. code for specific protein domains.
Biology
1 answer:
suter [353]3 years ago
7 0

Answer: c. are spliced out of the message.

Explanation: Intron are non-coding portion of the DNA sequence. They do not code for any specific amino acid and are spliced or removed before splicing.

Exons are DNA sequence that code for specific amino acid they are usually left after introns are removed and are joined together before translation into amino acid sequence. Intron splicing can lead to splicing some exons which can lead to formation of an entirely new amino acid or protein.

Spliceosome are enzymes for splicing introns.

You might be interested in
How many new cells are produced from each parent cell during meiosis?
Dmitriy789 [7]
The answer is 4 new (daughter) cells.

In meiosis, it produces 4 daughter cells which are genetically different from both the parent and the other daughter cells.
the parent cell first duplicates its chromosomes, just like mitosis (the kind of division that leads to 2 genetically identical daughter cells) . Then it divides, leading to 2 genetically identical daughter cells. But this does not end here. The 2 daughter cells further divides into total of 4 daughter cells, but without duplicating the DNA. That's why, the daughter cells has different DNA materials.
These daughter cells has half of the parents chromosomes, and we call them haploid.

Haploid cells are usually common in gametes. When an organism reproduces sexually, 2 gametes fuse together and leads to diversity.
6 0
3 years ago
Guys pls help me!!!!!!!!!!! R these all correct!!!
Neko [114]

Yes, but I think you need to switch immune system and immunity. Good Luck!!

5 0
3 years ago
Which statement best describes photosynthesis and respiration
blagie [28]

Answer:

Easy

Explanation:

Photosynthesis turns carbon into oxygen, and respiration puts carbon back in the air

3 0
3 years ago
What allows simple transformers to step voltage up or down?
Arisa [49]
Its as a result of unequal coiling of wires.
A transformer has two separate windings i.e primary and secondary. The Ratio of primary coils to secondary coils (turn ratio Np/Ns) is the one which makes it a step down or step up transformer. Step up transformer increases the voltage while step down transformers reduce it.
5 0
3 years ago
Cytosine makes up 42% of the nucleotides in a sample of dna from an organism. approximately what percentage of the nucleotides i
julia-pushkina [17]
A) 8% - because cytosine pairs with guanine so they have the same percentage and that makes it up to 84%. Adenine and Guanine also occur in the same percentages are they pair so 100-84 leaves 16% remaining, divided by 2 leaves 8% for both cytosine and guanine.
6 0
3 years ago
Other questions:
  • Which is the largest gland in the body?
    9·2 answers
  • Fossilized stromatolites
    6·1 answer
  • A nurse informs a woman that there is nothing more that can be done medically for her premature infant who is expected to die. t
    13·1 answer
  • Alexa has mixed four samples of soil. She is going to plant a tomato seedling in each one. Examine the mixtures and select the b
    9·2 answers
  • Does anyone know the answer<br><br>Thanks​
    6·2 answers
  • Name the activity that takes place in these parts of the digestive system:
    9·1 answer
  • Water found in an river is...<br><br> A - Salt Water<br> B - Fresh Water
    13·1 answer
  • Asexual reproduction involves
    14·2 answers
  • When does<br> transcription<br> happen?
    8·2 answers
  • Suggest reasons, is a fall armyworm an insect or not​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!