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
aksik [14]
3 years ago
10

Which of the following mutations would be most likely to have a harmful effect on an organism?

Biology
1 answer:
klasskru [66]3 years ago
6 0

Answer:

d. a single nucleotide insertion downstream of, and close to, the start of the coding sequence.

Explanation:

A <u>single nucleotide insertion downstream and close to the start of coding sequence will produce the most harmful effect</u> among all these given options because it will cause the <u>entire reading frame to shift in the beginning itself leading to insertion of wrong amino acids in the entire polypeptide chain</u>, hence the entire protein will have extremely different amino acids than the original protein was supposed to have and such <u>protein will be dysfunctional. </u>

In option (a), it is given that the three nucleotides near the middle of the gene will be deleted. This scenario will produce comparatively less harmful effect because in this case only one amino acid which is coded by this deleted triplet codon will be absent in the polypeptide.

In option (b), a single nucleotide deletion has occurred that too in an intron. It will produce <u>no harmful effect in case of eukaryotes</u> because introns are ultimately removed before translation so the amino acids in the polypeptide will remain the same. In case of prokaryotes such deletion may cause some harmful effect in case of mRNA only because introns in prokaryotic mRNA are not removed. But, if the mRNA is for <u>prokaryotic tRNA and rRNA </u>then there will be no harmful effect because they undergo processing in which introns are removed.

In option (c) also there will be very less harmful effect because deletion is occurring near the end of coding sequence which will lead to insertion of wrong amino acid in the polypeptide at the end of polypeptide chain that means very less abnormal amino acids will be present so effect will be less harmful.

You might be interested in
Based on the food web diagram, label the following statements as true or false. Drag "True" or "False" to the end of each statem
inessss [21]

Answer:

Phytoplanktons are producers

Squid are secondary consumers

Leopard seals are quaternary consumer

Explanation:

Phytoplanktons are producers because this are small plants that produce their own food by the process know as photosynthesis

Consumers are organisms that depends on plants for survival. They cannot produce their own food like plants. Fish are primary consumers because they eat plants. When Squids eat fish , squid is considered a secondary consumer because they eat  the primary consumer.

Leopard seals are quaternary consumer because they are at the top of the food chain or the tertiary consumer. They eat the primary and the secondary consumer

3 0
3 years ago
Does the genetic message get altered when the information is conveyed intracellularly under normal conditions? Support your answ
IRINA_888 [86]

Genetic transmission is the mechanism that drive evolution.Asexually reproducing organisms reproducing organisms reproduce using mitosis, while the sexually reproducing organisms reproduce using meiosis.

Both these mechanisms are involved in duplication of DNA which then get passed to offspring and RNA is key component in the duplication of DNA. The genetic information heritable biological information coded in the nucleotide sequence of DNA or RNA.

Genetic material is includes genes and DNA which control the development , maintenance and reproduction of organisms. These messages is passed from generation to generation through inherited units of chemical information. It consist of only two transcription and translation they known as gene expression , during this process of transcription store in gene DNA is passed to similar molecule called RNA in nucleus.

To learn more about Genetic transmission here

brainly.com/question/13248038

#SPJ4

7 0
1 year ago
Relate the development of plant needles to the occurrence of mutations.
xxMikexx [17]
<h2>Development of Plant Needles</h2>

Explanation:

  • Seed of pitch pine treated with colchicine delivered tetraploid seedlings which had thick and sporadic needles and less fortunate tallness and diameter growth than ordinary seedlings.  
  • In test of colchicine-initiated polyploidy in pines, researcher found that a significant number of the polyploid plants returned to a diploid development in light of the fact that the polyploid cells partitioned at a more slow rate and were overwhelmed by the more quickly developing diploid cells which encompassed them.  
  • The primary needles of both diploid and polyploid plants were more effective at low light intensity than secondary needles, and they had lower compensation points.

5 0
3 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzzzzzzzzzzzz help i only need help with B everything eles i can do my self
Nina [5.8K]

Answer:

I believe that it is the lettuce.

Explanation:

it is the fist thing in the graph so it is the start/producer of the chain.

4 0
3 years ago
A hypothesis determines ...
statuscvo [17]

Answer:

the correct answer would be C.

Explanation:

it would be C because a hypothesis is your guess of what the results will be. once you test the product you will figure out if your hypotheses was correct or not.

i hope this helps you out!!

-AlphaWolfie-

8 0
3 years ago
Other questions:
  • Which of the following statements is true?
    5·2 answers
  • What do goblet cells and cilia have in common? Both moisten the air. Both filter the air. Both secrete mucus. Both diffuse oxyge
    13·2 answers
  • What two layers of the egg must the sperm penetrate to reach the egg's plasma membrane?
    14·1 answer
  • Which of the following is a potential obstacle to the commercial development of brownfields? a. the presence of pollutants b. en
    9·2 answers
  • The scales of female pine cones produce a sticky substance. what function might this serve?
    15·1 answer
  • Single-celled organisms must be able to
    12·1 answer
  • Choose the term that best matches the description given. Worms that are often parasites of the digestive system
    12·1 answer
  • Lipids, like nucleic acids and proteins, are made of strings of similar subunits.
    11·1 answer
  • Explain the cellular functions that occur when antibiotics attack a bacteria cell?<br><br>Thank you!
    11·1 answer
  • What are some possible future career fields in environmental science
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!