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
nexus9112 [7]
3 years ago
15

Please explain the difference between a frameshift mutation and a base substitution mutation.

Biology
2 answers:
harina [27]3 years ago
7 0

Answer:

A frameshift changes every codon past it. A base substitution only changes one codon.

Explanation:

DNA is comprised of nucleotides (A, C, T, G) that make up amino acids. Every three bases is called a codon and represents an amino acid.

In a frameshift mutation, a nucleotide is either added or deleted from the sequence. This offsets the entire sequence after it because the reading frame shifts. Here's an example:

ACTGCTATCGTCATC

If another T is added in between the first and second codons, then every codon after will be changed.

ACT>T<GCTATCGTCATC

A substitution mutation is usually less severe, as it only alters one codon in the sequence. These occur when one nucleotide is replaced by another one. Here's an example:

ACTGCTATCGTCATC

Let's say the first G is replaced by a T.

ACT>T<CTATCGTCATC

As you can see, none of the other codons changed.

Typically, a frameshift mutation is considered worse than a substitution mutation.

faltersainse [42]3 years ago
4 0

Answer:The main difference between point mutation and frameshift mutation is that point mutation is an alteration of a single nucleotide in a gene whereas frameshift mutation involves one or more nucleotide changes, altering the open reading frame of a particular gene

You might be interested in
The area of the cortex that is responsible for sensations of the full bladder and the feeling that your lungs will burst when yo
Olegator [25]

Answer:

Insular cortex

Explanation:

The insular cortex is found in the visceral sensory area and receives sensory input from the thalamus to the CNS. They play a role in emotions including self awareness, motor control etc and they also play a part in the regulation of the body's homeostasis.

7 0
3 years ago
Sharks and other predators do not normally eat plants however they do receive some energy from plants how is this possible
Leya [2.2K]
Animals get their energy by eating food.
Some animals eat plants. These are called herbivores.
They can also be known as primary consumers.
Carp is a herbivorous fish.


Nutrition – being able to get energy out of food ... Plants get their energy from the sun. ... Some animals eat both plants ... Predators. Predators eat other animals. Sharks eat fish so they are.

4 0
3 years ago
Which of the following is not associated with asexual reproduction?
fgiga [73]
Anything that relates to sexual reproduction (gametes coming together to fertilize) should be crossed off.

Not much context was provided but you can look back to some other questions I've answered, I have a full in-depth answer to the same question another person had.
4 0
3 years ago
A dysbarism injury refers to the signs and symptoms related to changes in
weqwewe [10]
Answer:  "<span>barometric pressure" .
__________________________________________________</span>
3 0
3 years ago
The greater the concentration of sulfur and nitrogen oxides, the higher the pH of precipitation. True False
OLEGan [10]

False

Nitrogen and sulfur dioxide are acidic oxides in nature. The burning of fossil fuels and other sources are responsible for addition of these oxides in the atmosphere of earth. These oxides mixed with water vapor causes acid rain. Being acidic in nature they will have low pH value. Therefore, greater the concentration of sulfur and nitrogen oxides, will lower the pH value of precipitation.

hope this helps:)sorry if it doesnt

6 0
3 years ago
Read 2 more answers
Other questions:
  • Am I right? I will mark a brainliest! :) there is a picture!
    9·1 answer
  • Question 14 (5 points)
    7·1 answer
  • Transuranic waste comes mostly from used clothing and medical wastes. <br><br> True Or False ???
    12·2 answers
  • weather along most fronts is usually cloudy with precipitin because the warm air along most fronts is usually?
    11·1 answer
  • How long can an eclipse occur?
    7·1 answer
  • How does gene flow directly contribute to evolution?
    6·1 answer
  • As animals have progressed from sponges through mammals, describe in detail 2 ways animals have become more complex?
    12·2 answers
  • Identify the true statement. a. DNA from insects preserved in amber is not enough to clone extinct species as depicted in Jurass
    13·1 answer
  • Ans this question pls it is Urgent
    13·1 answer
  • How does a sea breeze form? [[HeLp- PlEaSe]]
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!