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
kipiarov [429]
3 years ago
14

How can mutations in noncoding segments of dna contribute to the development of cancers?

Biology
2 answers:
Ilya [14]3 years ago
8 0

Answer:

Non-coding segments of DNA are those segments that do not code for any amino acids or protein. Many non-coding DNA sequence or region plays an important role in controlling gene activity which determines when any gene will turn off and turn on.

For example mutation in enhancer element that regulates the SOX9 gene can a disorder called isolated Pierre Robin sequence which can cause abnormalities in face and head. Apart from enhancer mutation can affect other regulatory sequence like promoter, silencer which can cause several types of cancer because they affect cell cycle negatively.  

mario62 [17]3 years ago
4 0

Answer:

Explanation:

Several mutations have been shown to be connected to the development of cancer. Mutations in the front area of the gene which controls the length of telomeres, can trigger cancer. Telomeres decide how many times a cell can divide and every time a cell divides the telomeres becomes shorter meaning at a stage the telomeres are so short that the cells can not longer divide. However, when mutation occurs in the region before the gene it makes it active and extends the length of telomeres in an abnormal way making cells to keep dividing itself leading to a tumour.

Also when mutation and replication occurs in non coding regions, it leads to copying of unwanted genes that will alter the protein structure and thus leads to a disease condition and even cancer.

You might be interested in
Epinephrine initiates a signal transduction pathways that produces cyclic AMP (cAMP) and leads to the breakdown of glycogen to g
vladimir1956 [14]

Answer:

The ability of caffeine to inhibit adenosine receptors, plays a very important role in heightened alertness and sleeplessness.

Explanation:

"<em><u>Caffeine</u></em>" (<em>1,3,7-trimethylxanthine</em>) is an alkaloid obtained from plants. It has a chemical formula of C8H10N4O2.

Caffeine is generally <em>hydrophillic</em> but sufficiently <em>lipophilic</em> to pass through all biological membranes and readily cross the blood-brain barrier.

Therefore can bind with the adenosine receptors. Due to the blocking of adenosine inhibitory effects through its receptors held by paraxanthine and caffeine, it indirectly affects the release of <u>norepinephrine, dopamine, acetylcholine, serotonin, glutamate</u> e.t.c.

The release of the above-mentioned hormones have a great impact on the heightened alertness of the body, especially <em>dopamine</em> and <em>serotonin</em>.

8 0
3 years ago
Before organisms with nuclei evolved, life on earth consisted only of unicellular
Free_Kalibri [48]
These organisms that consisted only of unicellular were called prokaryotes. 
8 0
2 years ago
A 3 base section of mRNA. The ribosome reads 1 codon at a time; translation of a new protein always begins with _________, or Me
lukranit [14]

Answer:

The start codon is AUG

Explanation:

A three nucleotide sequence (represented with bases) of a DNA or a RNA which translates to a specific amino acid is referred to as codon. To begin the translation into a new protein, the first three nucleotide is always AUG (called the START codon) which is the codon for methionine.

NOTE: AUG is the initial of the bases; Adenine, Uracil and Guanine

7 0
3 years ago
Qué son las bases nucleotídicas
shusha [124]

Answer:

Un nucleótido es el componente básico de los ácidos nucleicos. ... Un nucleótido consiste en una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unida a un grupo fosfato y una base que contiene nitrógeno. Las bases utilizadas en el ADN son adenina (A), citosina (C), guanina (G) y timina (T).

Explanation:

8 0
2 years ago
As water temperature __________ the amount of O2 dissolved in water _____.
lara [203]

Answer:

Explanation:

As water temperature increases, the amount of O2 dissolved in water decreases.  

The graph looks something like this (though not exactly. It just has the same sort of shape.)

6 0
2 years ago
Other questions:
  • Multiple architectural orders were incorporated into the colosseum, including:
    5·2 answers
  • Animals behave in order to satisfy needs.
    13·2 answers
  • The Yellowstone Supervolcano has the potential to cause large scale damage when it erupts. Conduct independent research and answ
    6·1 answer
  • Which of the following is the result of Hundred Years' War?
    15·1 answer
  • Diagram that shows the force inside plant cells that allow plants stems and leaves to stay rigid and up right
    13·1 answer
  • What is the function of the enzyme topoisomerase in dna replication?
    12·1 answer
  • Select all that apply the bones or the lower arm are
    15·1 answer
  • what fruit or seed adaptations might plants have for seed dispersal using biotic vectors such as bird or small mammals?
    7·1 answer
  • Which of the following does not result in a cell with a new genetic
    14·2 answers
  • Darwin suggested that plants pollinated by long tongued insects would benefit by having long flowers. To measure the advantaged
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!