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
s2008m [1.1K]
3 years ago
10

A number of different types of mutations in the HBB gene can cause human β-thalassemia, a disease characterized by various level

s of anemia. Many of these mutations occur within introns or in upstream noncoding sequences. Explain why mutations in these regions often lead to severe disease, although they may not directly alter the coding regions of the gene.
Biology
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Answer:

Mutations in introns create alternative splicing site which in turn make mRNA with reduced or no translation.

Explanation:

Introns regulate the splicing of heterogenous RNA during post transcriptional modifications as well as affect the stability of mature mRNA. The stable mRNA is more likely to be translated into proteins. So, introns also regulate the translation of mRNA.  

In human beta thalassemia, mutations in intron create alternative splicing sites which in turn affect the formation of beta globin chain of hemoglobin. Lack of beta globin chain reduces the amount of functional hemoglobin and causes anemia.

You might be interested in
As a car is driven around burning gasoline what is released into the atmosphere
katovenus [111]
I believe ur answer is co2
7 0
3 years ago
Read 2 more answers
Which method is best for seperating salt and breadcrumbs?
Tanzania [10]

Answer:

Filtering to obtains breadcrumbs and the heat the salt solution to saturation and cool it

8 0
2 years ago
Before replication can take place.(1) A. DNA polymerases must add complementary nucleotides to DNA. B. the two strands of DNA mu
andriy [413]

Answer:

The correct answer is B. the two strands of DNA must separate.

Explanation:

DNA is a double-stranded structure. The two strands are joined together by the formation of hydrogen bonds between complementary nucleotides. So before the replication takes place these two strands must be separated.

The separation of DNA strand is accomplished by the action of a helicase enzyme which breaks the hydrogen bond between complementary nucleotides and separated the two DNA strands.  

After separation, the DNA polymerase binds to separated DNA and replicating the DNA. So the right answer is B.

4 0
3 years ago
A plant experiences a mutation to its xylem tissue. The plant will no longer To transport
Ket [755]

Answer:

The plant will no longer be able to transport water and dissolved minerals from the roots to the rest of the plant

6 0
2 years ago
What is co2 diffusion
77julia77 [94]
Ventilation is the process by which air moves in and out of the lungs.Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
6 0
3 years ago
Other questions:
  • What is the flow of the neuphron
    5·2 answers
  • What is the difference between proximate causes and ultimate causes? Provide an example of each.
    15·1 answer
  • Which of the following is a true statement about cartilage?
    15·1 answer
  • Why are humans likely unable to regenerate damaged body parts
    5·1 answer
  • Dr. Smith reads two research papers that present different conclusions about the same questlon. He knows the researcher who wrot
    12·1 answer
  • What organelle can you name along with their function
    6·1 answer
  • Photosynthesis allows organisms to harvest the Sun's emergy to produce<br> _______
    5·2 answers
  • Hello please help i’ll give brainliest
    9·2 answers
  • Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check
    9·1 answer
  • What tissue makes up most of the wood of a tree? A. primary xylem B. secondary xylem C. secondary phloem D. vascular cambium
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!