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
Fudgin [204]
2 years ago
7

Why do RNA viruses appear to have higher rates of mutation? (A) RNA nucleotides are more unstable than DNA nucleotides.

Biology
1 answer:
Tanzania [10]2 years ago
6 0

Replication of RNA genome in RNA virus does not involve proofreading. Thus RNA viruses have higher rates of mutation. So the correct option is B.

<h3>What is meant by proofreading? </h3><h3> </h3>

There are a variety of mechanisms in the cell to prevent mutations. Thus, permanent changes in the DNA sequence are prevented.

During the process of synthesis of DNA, DNA polymerases can analyse any mistake made during the synthesis and fix it. The majority of mispaired bases can be fixed by this process. It is called proofreading.

This process is not present in RNA and RNA polymerases. Thus RNA viruses appear to have higher rates of mutation compared to DNA viruses.

Therefore the correct option is B.

Read more about RNA viruses, here

brainly.com/question/14892485

#SPJ4

You might be interested in
Why is DNA referred to as the genetic code?<br>​
Gnesinka [82]

The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

4 0
3 years ago
All of the following would be considered environmental factors that influence your personality EXCEPT: A. support B. aptitude C.
elena55 [62]

Answer:

aptitude

Explanation:

  • The factors that influence the personality of a person are broad of two types - one is the individual factors and the second is the environmental factors.
  • From the given list, aptitude is a type of individual factor that influences a person's personality as an aptitude is a person's factor which is usually not changeable and is an inherent factor that is not influenced by the environment.

4 0
3 years ago
Which of the following is a reason why sticky end producing restriction enzymes are preferred compared to blunt end ones?
anyanavicka [17]

Answer:

D) Because sticky ends can be temporarily held together by hydrogen bonding between the two strands.

Explanation:

Restriction enzymes cut the DNA at specific restriction sites and by the mechanism of action they can form two types of ends:

  • sticky ends-single-stranded overhangs are formed
  • blunt ends-without overhangs.

The main advantage of sticky ends (their overhangs) is that they can complementary bind to another overhand formed by the same restriction enzyme. So, for example in cloning, if the DNA of interest and plasmid vector are cut with the same restriction enzyme, that  forms sticky ends, fragment of DNA will fit into a bacterial plasmid in one direction.

On the other hand, blunt ends can be inserted into vector in both directions: head-to-tail or tail-to-head.

6 0
3 years ago
What type of microscope is used for looking at metal surfaces?
KiRa [710]
A metallurgical microscope
8 0
4 years ago
PLS SOMEONE HELP ME WITH THIS ILL MARK BRAINLEST
mixer [17]

Answer:

1. The action of making a person or animal immune to a disease

2. Polio is a disease that has been eradicated through immunization due to vaccines.

3. Vaccinators vs Anti-Vaccinators

Explanation:

uhhhh not really an explanation for this one

6 0
3 years ago
Other questions:
  • To halt the decline in biodiversity, we must do which of the following?
    10·2 answers
  • Why is it important that enzymes are not changed after they help a reaction?
    10·2 answers
  • How can plastics in the ocean impact human health?
    14·1 answer
  • Which of the following best describes the information presented in this Punnett square?
    8·1 answer
  • A science student makes the following statement:
    8·2 answers
  • What would happen if the body wasn't able to respire enough
    9·2 answers
  • If the experiment's data does not support the hypothesis, what would a scientist do next?
    13·2 answers
  • AMP-PNP is a non-hydrolyzable analog of ATP that can bind to proteins in a similar manner as ATP but is no longer hydrolyzed. Pr
    5·1 answer
  • Las células procariontes pueden formar tejidos?, ¿por qué?
    5·1 answer
  • Humans store excess polysaccharides in the form of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!