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
12

why are the polio virus unable to reproduce if their DNA base sequence is different from the normal virus?

Biology
1 answer:
maks197457 [2]2 years ago
5 0

Answer:

When the virus infects a cell, the RNA genome enters the cell and programs it to make new virus particles. These virus particles are released from the cell and go on to infect new cells. In humans, poliovirus is ingested, and replicates in cells of the gastrointestinal tract.Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).RNA viruses generally have very high mutation rates compared to DNA viruses, because viral RNA polymerases lack the proofreading ability of DNA polymerases. The genetic diversity of RNA viruses is one reason why it is difficult to make effective vaccines against them.

You might be interested in
The word haunted appear as a motif in John Updike's "The Brown Chest," in what way and how does it contribute to the meaning of
Anettt [7]
The choices are:
<span>A. The word haunted describes the boy’s ancestors. The word suggests their actions still affect him and influence his personality, even when he becomes an adult.
 
B. The word haunted describes items of antiquity. As a boy and as an adult, the narrator peers anxiously at old, unused items that make him feel uneasy.

C. The word haunted suggests that the boy is still haunted by memories of his childhood and his parents. The chest is a reminder of personal experiences he can’t ignore.

D. The word haunted describes the house the boy lived in. Even after he and his family moved to a new home, the memories of his fear stay with him.
</span>
The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.
7 0
2 years ago
Which organelle in the plant cell shown above makes glucose from sunlight?
Anni [7]
Chloroplasts<span> are organelles used by plant cells to make a sugar called glucose from sunlight. Energy stored in the chemical bonds of the sugar molecules can be used, either by the plants or by the animals that eat them, to fuel body processes.</span>
4 0
3 years ago
What is not true regarding carbohydrate structure and function?
diamong [38]

Answer: carbohydrates is composed of amino acids

Explanation: carbohydrate functions as an energy giving food in the body. Examples are rice, casssava and maize. The molecular structure of carbohydrate is (CH20)n. Carbohydrate has three subtypes:

(1) Monosaccharides: They are simple sugar and consists of a number of carbons(C) which ranges from 3 to 7.

(2) Disaccharides: They are formed when two Monosaccharides undergo a dehydration reaction which is also known as condensation reaction. thanks

(3) Polysaccharides: They consist of a long chain of branched or unbranched

Monosaccharides Monosaccharides linked by covalent bonds.

Carbohydrates is not composed of amino acids but rather protein is composed of amino acids.

5 0
3 years ago
Diabetic ketoacidosis (dka) in a client with type 1 diabetes occurs when the lack of insulin leads to the release of which physi
masha68 [24]

The answer to the above question is Fatty acids.

<h3>What are Fatty acids?</h3>

A fatty acid is a carboxylic acid with an aliphatic chain that is either saturated or unsaturated. This definition applies to chemistry, particularly biochemistry. The majority of naturally occurring fatty acids have an unbranched chain with 4 to 28 carbon atoms, which is an even number. In some species, like microalgae, fatty acids make up a significant portion of the lipids (up to 70% by weight), but in other organisms, they are present as one of the three main types of esters: triglycerides, phospholipids, or cholesteryl esters rather than in their solo form. Fatty acids are crucial nutritional sources of energy for animals in any of these forms, as well as crucial cellular building blocks.

To learn more about Fatty acids with the help of given link:

brainly.com/question/26353151

#SPJ4

6 0
1 year ago
Bermuda grass has ____ or stems that grow along the ground and produce roots stems and leaves.
never [62]
C. rhizomes

Bermuda grass has rhizomes, or stems that create along the ground and make roots, stems, and gets out. 
Grasses that consistently create in quiet prairies consolidates blue gamma grass, Johnson grass, wild bull grass, and distinctive sorts of wheat and burley. Gentle fields are found in less tropical organic group, have greater temperature change in the midst of the year, and have less precipitation.

Can you make me brainlest!! :)
5 0
2 years ago
Other questions:
  • What part of speech is the first word in a scientific name?
    7·1 answer
  • If a eukaryotic cell has 20 chromosomes and it undergoes meiosis ii, how many cells will result, and how many chromosomes will t
    10·1 answer
  • In which step of the diagram does the virus release a protein that causes the cell wall to burst?
    12·2 answers
  • When an ATP molecule is activated or used, what are the resulting molecules?
    13·1 answer
  • One way parents and guardians can influence technology use is to model proper use for their children. What outcome would you exp
    5·2 answers
  • The cross bridge cycle is a series of molecular events that occur after excitation of the sarcolemma. What is a cross bridge?
    7·1 answer
  • Predict the chemical formula of butyne, having one carbon-carbon triple bond. C4H8 C4H10 C4H6
    14·1 answer
  • What is fermentation
    8·1 answer
  • Help
    8·1 answer
  • HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!