Competitive Exams: Zoology MCQs (Practice_Test 1 of 112)

Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

  1. The function of highly repeated satellite DNA sequence at the end of an eukaryotic chromosome is to protect the
    1. ends of chromosomes from being shortened during replication
    2. chromosomes from ionizing radiation
    3. chromosomes from random recombination
    4. chromosomes from incomplete separation during anaphase
  2. Bulk of the protein glycosylation takes place in
    1. Golgi complex
    2. peroxosomes
    3. ribosomes
    4. lysosomes
  3. Which one of the following enzymes is involved in packaging/supercoiling of DNA molecule?
    1. Topoisomerase
    2. Ligase
    3. a-polymerase
    4. Helicase
  4. During oxidative phosphorylation in mitochondria synthesis of ATP occurs due to
    1. oxidation of glucose by glycolysis
    2. electrochemical proton gradient
    3. oxidation of NADH to NAD +
    4. oxidation of pyruvate to acetyl CoA
  5. C-value paradox refers to the presence of
    1. more DNA than needed for coding
    2. less number of t-RNA than needed for polypeptide forma
    3. larger number of ribosomes than needed for polypeptide synthesis
    4. less number of RNA polymerases than needed for RNA synthesis
  6. How many types of t-RNA are found in an eukaryotic cell?
    1. 64-one each for genetic codon
    2. 20-one each for amino acids
    3. 03-related to protein synthesis
    4. 02-related to ribosomes and endoplasmic reticulum
  7. ‘Sex’ linked genes refer to genes
    1. present in a particular sex
    2. controlling secondary sexual characters
    3. controlling both primary and secondary sexual characters
    4. present on the sex chromosomes
  8. Insertion or deletion of a nucleotide in a class of mutation resulting in a sequence of codon that makes nonsensical polypeptide chain is called
    1. transversion
    2. inversion
    3. fame shift mutation
    4. lethal mutation
  9. Cancer causing genes are called
    1. operons
    2. oncogenes
    3. recons
    4. mutons
  10. Copper is associated with which one of the following mitochondrial enzymes?
    1. Cytochrome oxidase
    2. Syccinic dehydrogenase
    3. Catalase
    4. Acid phosphatase
  11. Two chromatin fibres per chromosome are present in
    1. G1
    2. cytokinesis
    3. telophase
    4. G2
  12. RNA molecules, capable of catalyzing a chemical reaction such as self-splicing, are known as
    1. isozymes
    2. ribosomes
    3. ribosomes
    4. lysosomes
  13. Mitotic chromosomes
    1. have high rate of protein synthesis
    2. have high rate of DNA synthesis
    3. show maximum chromosome condensation
    4. have homologous recombination
  14. ‘a’ is an autosomal gene and is responsible for albino character. A male rate, heterozygous for a, is crossed with a female rat of some genotype. How many of the F, offspring will express a phenotype (i.e.. . Albino) ?
    1. 100 %
    2. 50 %
    3. 25 %
    4. None
  15. Trichocysts occur in
    1. hydrozoa
    2. porifera
    3. protozoa
    4. ctenophora

Frequently Asked Questions (FAQs)

  • Zoology Questions

    ( - a4...@ on )

    1 Answer

    For Zoology questions and notes you can visit Zoology Study Materials. All the important topics have been covered.

    - a4...@ on

  • Answers of zoology practice mcqs

    ( - bu...@ on )

    1 Answer

    You can visit Zoology Study Materials to get all the important practice questions and answers along with notes being covered topic wise.

    - bu...@ on

  • Plz give the answers

    ( - re...@ on )

    1 Answer

    You can visit Zoology Study Materials. A number of important questions and answers have been discussed along with notes.

    - re...@ on

  • Most important chapters for NEET 2020

    ( - ra...@ on )

    1 Answer

    Study materials for NEET are available on NEET Study Materials. Notes, real exam online tests, practice questions with answers and video lectures have been provided for Physics, Chemistry and Biology.

    - ra...@ on

  • Zoology

    ( - vi...@ on )

    1 Answer

    Zoology related important practice questions and answers have been discussed on Zoology Questions and Answers. To help the students prepare well System Physiology of Animal has been covered in detail.

    - vi...@ on

  • are these useful for drdo tier 2 exam for zoology? I really want to clear this exam.how should I study because vacancies are 3 and competition is tough.

    ( - pr...@ on )

    1 Answer

    You must Search at - https://www.examrace.com/Study-Material/Zoology/ & prepare well and you should clear this exam.

    - pr...@ on

  • Sir, i want prepare for M.sc entrance exam (kashmir University)

    ( - mo...@ on )

    1 Answer

    - mo...@ on

  • i want answer of each practice paper

    ( - ro...@ on )

    1 Answer

    For solutions to botany and zoology problems visit - https://www.doorsteptutor.com/Exams/NEET/

    - ro...@ on

  • Appearing for KVPY for first time, where to get solutions?

    ( - an...@ on )

    1 Answer

    For KVPY solutions to past papers visit - https://www.doorsteptutor.com/Exams/KVPY/

    - an...@ on

  • I want a DRDO ceptam 08 zoology syllabus and previous year question papers

    ( - ge...@ on )

    1 Answer

    We will be including the DRDO examination soon. .

    - ge...@ on

Developed by: