Home
Class 11
BIOLOGY
Assertion : Viruses are not included in ...

Assertion : Viruses are not included in any system of classification.
Reason : Viruses are non-living but devlop living characters like multiplication etc. when they come in contact with suitable host.

A

If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not a correct explantion of the Assertion.

C

If Assertion is ture but the Reason is false.

D

If both Assertion and Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we will break down the statements step by step. ### Step 1: Understand the Assertion The assertion states that "Viruses are not included in any system of classification." - **Explanation**: Viruses are unique entities that do not fit neatly into the traditional biological classification systems (like the five kingdoms). They are often considered to be at the boundary between living and non-living things. ### Step 2: Understand the Reason The reason states that "Viruses are non-living but develop living characters like multiplication etc. when they come in contact with a suitable host." - **Explanation**: Viruses are classified as non-living because they cannot carry out metabolic processes on their own. However, when they infect a host cell, they can hijack the host's cellular machinery to replicate and produce new virus particles, demonstrating characteristics of living organisms. ### Step 3: Analyze the Relationship Between Assertion and Reason - Both the assertion and reason are true statements. The assertion correctly identifies that viruses are not classified within traditional biological systems, and the reason accurately describes the nature of viruses as non-living entities that exhibit living characteristics under certain conditions. ### Step 4: Conclusion Given that both the assertion and reason are true, and the reason provides a correct explanation for the assertion, we conclude that: - **Final Answer**: Both assertion and reason are true, and the reason is a correct explanation of the assertion.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • BIOLOGICAL CLASSIFICATION

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) ( E. ADDITIONAL MULTIPLE CHOICE QUESTIONS)|20 Videos
  • BIOLOGICAL CLASSIFICATION

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|16 Videos
  • BIOLOGICAL CLASSIFICATION

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) ( C. MATCHING TYPE QUESTIONS)|1 Videos
  • ANIMAL KINGDOM

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|15 Videos
  • BIOMOLECULES

    MODERN PUBLICATION|Exercise CASE BASED SHORT ANSWER TYPE QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

Give scientific reasons for the following statements : (i) The mushrooms are not regarded plants now. (ii) Perfect phylogenetic classification is diffcult to achieve. (iii) Viruses are not included in any system of classification. (iv) Practical classification results in heterogenous groups of unrelated organisms. (v) Artificial classification gives little information about the groups. (vi) Phylogenetic classification is the most favoured classification.

Read the passage and answer the following questions. At present, according to the five-kingdom classification system of Robert Whittaker, all multicellular animals are included in Kingdom: Animalia. This system of classification is based upon some criteria like Body organization, Body symmetry, Body cavity, Germinal layers, Segmentation, etc. Name any two grades of organization.

Knowledge Check

  • Assertion :- Viruses did not find a place in any classification. Reason :- Viruses contain genetic material that could be either RNA or DNA

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are False
  • Assertion : Virus multiply only inside living cells. Reason : Viruses help host cells in growth and development.

    A
    Both assertion and reason are true and reason is the correct explanation of assertion
    B
    Both assertion and reason are true, but reason is not correct explanation of assertion
    C
    Assertion is true, but reason is false
    D
    Assertion is false, but reason is true
  • Assertion. Hierarchial system of classification is useful in that it reduces the volume of description in a catatogue of animals and plants. Reason. Characters given for a larger category (say a phylum) need not be repeated for smaller categories (say classes, orders, etc.)

    A
    If both A and R are true and R is the correct explanation of A.
    B
    If both A and R are true but R is not the correct explanation of A.
    C
    If A is true but R is false.
    D
    If both A and R are false.
  • Similar Questions

    Explore conceptually related problems

    Viruses are said to possess characteristics of both living and non-living organisms Find out more about the structure and behaviour of viruses when they are outside and inside the body of a host

    (a) Why are viruses regarded as biological systems as well as non-living particles? Give one reason each.

    Soft skills refer to non technical, personality specific skills that are easy to learn and follow compared to technical skills. Therefore these skills are called Soft skills. Soft skills encompas anything and everything that relates to the functioning of a group, an individual or an organization in relation to behaviour, performance, interaction, team spirit and all related aspects with are non technical in nature. It today.s competitve world, the only sustainable competitive advantage that cannot be duplicated is the " soft skills" i.e., the quality, drive, enthusiasm and leadership ability of the people of the organization. To be more precise, soft skill refers graces, etiquettes , personal habits , friendlinessm, degrees. For aspirants seeking jobm a variety of basic traits and skills life knowledge, character traits, interpersonal abilities, combined with ethics and attitudes form the key of their ability to get a job, to keep it , and to move up in the organization. For corporates , soft skills are about projecting oneself and one.s professional skills is the best possible way, and taking a holistic view of things. They are about how you interact with and react to others when you come into contact with them, they enable you to zero down to the most important point you want to make, but in attractive and charming manner. Select the suitable title for the passage

    Soft skills refer to non technical, personality specific skills that are easy to learn and follow compared to technical skills. Therefore these skills are called Soft skills. Soft skills encompas anything and everything that relates to the functioning of a group, an individual or an organization in relation to behaviour, performance, interaction, team spirit and all related aspects with are non technical in nature. It today.s competitve world, the only sustainable competitive advantage that cannot be duplicated is the " soft skills" i.e., the quality, drive, enthusiasm and leadership ability of the people of the organization. To be more precise, soft skill refers graces, etiquettes , personal habits , friendlinessm, degrees. For aspirants seeking jobm a variety of basic traits and skills life knowledge, character traits, interpersonal abilities, combined with ethics and attitudes form the key of their ability to get a job, to keep it , and to move up in the organization. For corporates , soft skills are about projecting oneself and one.s professional skills is the best possible way, and taking a holistic view of things. They are about how you interact with and react to others when you come into contact with them, they enable you to zero down to the most important point you want to make, but in attractive and charming manner. What is not included in the cluster of soft skills.

    A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given four alternatives. Soft skills refer to non–technical, personality specific skills that are easy to learn and follow compared to technical skills. Therefore these skills are called Soft skills. Soft skills encompass anything and everything that relates to the functioning of a group, an individual or an organization in relation to behaviour, performance, interaction, team spirit and all related aspects which are non-technical in nature. In today's competitive world, the only sustainable competitive advantage that cannot be duplicated is the "soft skills", i.e. the quality, drive, enthusiasm and leadership ability of the people of the organization. To be more precise, soft skill refers to the cluster of personality traits, interpersonal skills, social graces, etiquettes, personal habits, friendliness, leadership skills and optimism that mark each of us to varying degrees. For aspirants seeking job, a variety of basic traits and skills like knowledge, character traits, interpersonal abilities, combined with ethics and attitudes form the key to their ability to get a job, to keep it, and to move up in the organization. For corporates, soft skills are about projecting oneself and one's professional skills in the best possible way, and taking a holistic view of things. They are about how you interact with and react to others when you come into contact with them, they enable you to zero down to the most important point you want to make, but in an attractive and charming manner. Select the suitable title for the passage.