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
alex41 [277]
3 years ago
9

Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base

Biology
2 answers:
Georgia [21]3 years ago
3 0

Answer:

The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a <u>silent</u> mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

For the other options:

  • <u><em>Missense</em></u><em>: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. </em>
  • <u><em>Nonsense</em></u><em>: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete.</em>
  • <u><em>Insertion</em></u><em>: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.</em>
Nookie1986 [14]3 years ago
3 0

Answer:

A

Explanation:

plz Brainliest

You might be interested in
Armani broke his arm while playing soccer. His doctor recommends he change his diet while healing. Which is most likely to be a
Ad libitum [116K]

Answer:

not really a pro at health but I can try! I would say have a different diet while healing and stay home from soccer and let it heal. he should go to therapy daily for updates to see if his arm is healing or not. he should not take to much pressure onto his arm.

Explanation:

5 0
2 years ago
An individual heterozygous for the A and B alleles has a blood type of AB. What type of inheritancepattern is this?
Inga [223]

The correct option is the first one "Codominance", since both alleles are expressing at the same time.

8 0
1 year ago
Which of the following best describes the purpose of cellular reproduction?
Neko [114]

Answer:

i think b

Explanation:

cellular reproduction is to reproduce a preexisting cell

6 0
3 years ago
Read 2 more answers
After receiving a reward for escaping the puzzle box, the cats ________. A. appeared to enjoy the box more B. escaped more slowl
Nata [24]
I would consider the answer to be C. the cats would have more knowledge about how to get out the box so when it gets back in it knows how to get out
3 0
3 years ago
Read 2 more answers
An experiment was performed to study the progress of cells through the mitotic cell cycle. The compounds listed below were used
Hatshy [7]
<h2>Mitotic Cell Cycle</h2>

Explanation:

a. Cytochalasin: an inhibitor of actin microfilament

  • Cytokinesis is the process by which cytoplasm is divided into two cells hence generation of two daughter cells
  • In animal cells the division of cytoplasm starts with the assembly of contractile ring
  • Contractile band consists of actin and myosin and catalyze cleavage furrow formation
  • Cytochalasin is a drug that blocks the polymerization of actin filament
  • When cytochalasin is added dividing cell fails to undergo in cytokinesis due to defective assembly of contractile band

b. Colchicine: an inhibitor of microtubule formation

  • Colchicine tightly binds with free tubulin dimer and prevents its polymerization
  • In this case mitotic spindle apparatus do not assemble and cells unable to do partitioning of chromosomes into two groups
  • Thus cell division is arrested

c. Aphidicolin: an inhibitor of DNA Polymerase activity

  • Aphidicolin is used to induce cell cycle arrest via specific inhibition of DNA Polymerase α
  • It blocks the cell cycle at early synthesis(S) phase

d. Emetine: an inhibitor of ribosome activity

  • It blocks the protein synthesis in eukaryotic cells by binding to small subunit(40 S) of ribosomes
  • It interferes with the synthesis and activities of DNA and RNA
5 0
3 years ago
Other questions:
  • What happens to the oxygen and eagle ray takes in through its gills
    12·2 answers
  • during photosynthesis in Plants what is the source of carbon in the sugar molecule ( sorry know answer didn't know it was record
    14·2 answers
  • The four gas giants are
    10·2 answers
  • Is a way to minimize technical problems with your computer
    8·1 answer
  • How you can tell if the couple who is married had children?
    8·1 answer
  • Science and technology have developed cleaner fuels such as EA-85 fuel. What is a positive impact that this new fuel may have on
    6·2 answers
  • During interphase, the DNA in the nucleus of the cell is thin and threadlike and called _____.
    14·1 answer
  • How many people are diagnosed with skin cancer in the U.S. annually
    5·1 answer
  • Why is it necessary to seperate oxygenated and deoxygenated blood in mamals and birds? explain​
    11·1 answer
  • How do populations grow?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!