NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Zoology MCQs (Practice_Test 19 of 112)
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- Assertion (A) : In pearl oyster, it-is the nacre, which forms the pearl.
- Reason (R) : Nacre is secreted continuously by the edge of the mantle.
- Both A and R are true and R is the correct explanation of A
- Both A and R are true but R is NOT the correct explanation of A
- A is true but R is false
- A is false but R is true
- Assertion (A) : Queen bee after mating produces both fertilized and unfertilized eggs.
- Reason (R) : Fertilized eggs produce queen and drones (males) whereas unfertilized eggs are eaten up by the workers.
- Both A and R are true and R is the correct explanation of A
- Both A and R are true but R is NOT the correct explanation of A
- A is true but R is false
- A is false but R is true
- Which one of the following pairs is not correctly matched?
- Match Item 1: Nucleus
- Match Item 2: Genetic information
- Match Item 1: Cell membrane
- Match Item 2: Permeability
- Match Item 1: Microtubular
- Match Item 2: Glycolysis organelles
- Match Item 1: Golgi complex
- Match Item 2: Secretion
- Which one of the following components of plasma membrane is involved in the enlargement of cell surface area?
- Desmosomes
- Gap junctions
- Microvilli
- Cilia
- For which one of the following cell organelles, Janus green B is a specific vital stain?
- Golgi complex
- Ribosomes
- Lysosomes
- Mitochondria
- The hydrolytic enzymes a eukaryotic cell are present in
- cytoplasmic matrix
- mitochondria
- ribosomes
- lysosomes
- Most of the intermediates in the electron transport system are integral components of the
- outer membrane of the mitochondria
- inner membrane of the mitochondria
- inter membrane space of the mitochondria
- matrix of the mitochondria
- Match List I with List II and select the correct answer:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Zoology MCQs (Practice_Test 19 of 112) List-I (Substructures) List-II (Role) - Nucleosome
- Tubulin
- Desmosomes
- Lysosomes
- Cell adhering junctions
- Battery of degradative enzymes
- Structural units of chromatin
- Protein units of microtubules
- Oxidative phosphorylation
- A
- B
- C
- D
- 3
- 4
- 1
- 2
- 2
- 5
- 4
- 3
- 3
- 5
- 4
- 2
- 2
- 4
- 1
- 3
- Synaptonemal complex helps in
- gamete formation
- recombination during cell division
- production of enzymes during cell division
- chromosomal movement towards poles
- Which one of the following correctly represents the nature of blood in the ABO system of blood groups pertaining to the presence of antigens and antibodies?
- Blood group A-Antibody A and antigen B
- Blood group B-Antigen B and antibody A
- Blood group AB-Both antibodies A and B
- Blood group O-No antigens and no antibodies
- Besides primary constriction, there is a secondary constriction in some chromosomes, which is known as
- centromere
- telomere
- nudeolar organizer region
- chromonema
- If the sequence of based in 6 base pair long palindromic sequence on one side of the axis of symmetry is 5Υ GAA then the complete sequence of bases of this palindromic sequence will be
- 5 β5β GAA GAA CTT CTT
- 5 β5β GAA AAG CTT TTC
- 5 β5β GAA GAA AAG AAG
- 5 β5β CTT GAA TTC AAG
- Sickle cell anaemia is a genetic disorder. The cause of the disease is due to
- the substitution of glutamic acid in place of aspartic acid
- the substitution of proline in place of methionine
- substitution of valine in place of glutamic acid
- Select the correct answer using the codes given below:
- 1,2 and 3
- 1 and 2
- 2 alone
- 3 alone
- DNA shows hyperchromicity on
- heating
- cooling
- crystallizing
- lyophilizing
- The intervening sequences of βgeneβ are known as
- introns
- exons
- cistrons
- codon