Zoology (GATE)
Zoology Life Sciences GATE CSIR NET Systematics and Classification of AnimalsCirculatory SystemCellular Organelles and Their Structure and FunctionLipids and CarbohydratesBiochemistry and Molecular BiologyGeneticsBiochemistry
Questions
Which of the following is not a characteristic feature of sponges?
- Cellular level of organisation
- Presence of digestive cavity
- Presence of choanocytes
- Presence of canal system
- Presence of amphiblastula larva
Which of the following is a set of false fishes?
- Sucker fish, Mosquito fish, Lung fish
- Cray fish, Star fish, Jelly fish
- Cat fish, Cray fish, Flying fish
- Sucker fish, Star fish, Lung fish
- Mosquito fish, Star fish, Jelly fish
Match the evolutionary biologists in Group I with their respective theory in Group II.
| Group I |
</strong>|<strong> Gropu II</strong>|
|P. August Weisman|1. Neutral theory of molecular evolution|
|Q. Jean-Baptiste Lamark|2. Handicap principle|
|R. Amotz Zahavi|3. Theory of inheritance of acquired characteristics|
|S. Motoo Kimura|4. Germ plasm theory|
- P - 1; Q - 2; R - 3; S - 4
- P - 2; Q - 1; R - 3; S - 4
- P - 3; Q - 2; R - 4; S - 1
- P - 4; Q - 2; R - 1; S - 3
- P - 4; Q - 3; R - 2; S - 1
Which of the following is a set of subcellular organelles bound by a single membrane?
- Ribosomes, Centrioles, Nucleolus
- Lysosomes, Peroxisomes, Vacuoles
- Mitochondria, Chloroplasts, Nucleus
- Ribosomes, Lysosomes, Peroxisomes
- Nucleus, Nucleolus, Vacuoles
Which of the following sets of segments of an earthworm bear its hearts?
- 10th, 12th, 13th, 14th
- 8th, 12th, 13th, 15th
- 7th, 9th, 12th, 13th
- 9th, 12th, 14th, 15th
- 6th, 9th, 12th, 13th
Which of the following is a set of representative organisms of class Hydrozoa?
- Hydra, Obelia and Aurelia
- Obelia, Aurelia and Pennatula
- Physalia, Aurelia and Pennatula
- Obelia, Physalia and Hydra
- Hydra, Pelagia and Adamsia
Which of the following is a set of representative organisms of class Oligochaeta?
- Pheretima, Lumbricus, Tubifex
- Nereis, Aphrodite, Chaetopteus
- Hirudinaria, Pontobdella, Pheretima
- Lumbricus, Aphrodite, Pontobdella
- Tubifex, Nereis, Hirudinaria
Identify the false statements.
- The predominant antibody in saliva is IgA.
- The hormone testosterone is produced by Leydig cells.
- Hemolin is an antibody produced by sponges.
- Acrosome present on the sperm head is derived from endoplasmic reticulum.
- 1 and 2
- 1 and 4
- 2 and 3
- 2 and 4
- 3 and 4
Match entries in List I (Class) and List II (Examples) and select the correct answer.
| List I |
</strong>|<strong> List II</strong>|
|P. Crustacea|1. Cyclops|
|Q. Chilopoda|2. Scolopendra|
|R. Insecta|3. Lepisma|
|S. Arachnida|4. Palamnaeus|
- P - 1; Q - 2; R - 3; S - 4
- P - 2; Q - 4; R - 3; S - 1
- P - 2; Q - 3; R - 1; S - 4
- P - 3; Q - 4; R - 1; S - 2
- P - 4; Q - 3; R - 2; S - 1
Which of the following statements is/are FALSE?
I. Insertion or deletion of a nucleotide in a class of mutation resulting in a sequence of codon that makes nonsensical polypeptide chain is called frame shift mutation.
II. The enzymes involved in interconversion of relaxed and super coiled forms of DNA molecules are called topoispmerases.
III. DNA foot printing technique is usually used to identify the site for termination of transcription processes.
- Only I
- Only II
- Only III
- Both I and II
- Both II and III
Which of the following statements is/are FALSE?
- Enzyme that catalyses peptide bonding is located in larger sub-unit of the ribosome.
- AIDS-causing HIV identifies its target cells by recognising low density lipoproteins in cell membranes.
- Genetic recombination takes place during prophase of meiotic division-II.
- Synaptonemal complex helps in production of enzymes during cell division.
- Only 1
- Both 1 and 3
- 1, 3 and 4
- 2, 3 and 4
- All are false statements.
Match the entries in column I and column II and select the correct answer.
| Column I |
</strong>|<strong>Column II</strong>|
|P. Glycogen|1. Storage carbohydrate in plants|
|Q. Starch|2. Storage carbohydrate in animals|
|R. Cellulose|3. Primary energy source|
|S. Glucose|4. Structural polysaccharide in the plant cell wall|
- P - 1; Q - 2; R - 3; S - 4
- P - 2; Q - 1; R - 4; S - 3
- P - 2; Q - 1; R - 3; S - 4
- P - 3; Q - 1; R - 4; S - 2
- P - 4; Q - 2; R - 3; S - 1
Match the entries in column I (term) with that in column II (coined by) and select the correct answer.
| Column I |
</strong>|<strong>Column II</strong>|
|P. Annelida|1. Gegenbaur|
|Q. Arthropoda|2. Lamarck|
|R. Echinodermata|3. Von Siebold|
|S. Platyhelminthes|4. Jacob Klein|
- P - 1; Q - 2; R - 3; S - 4
- P - 1; Q - 3; R - 2; S - 4
- P - 2; Q - 3; R - 4; S - 1
- P - 3; Q - 2; R - 4; S - 1
- P - 4; Q - 3; R - 2; S - 1
Assertion (A): Pre messenger RNA (pre-m-RNA) must be modified before translation.
Reason (R): Pre-m-RNA contains the non-coding sequences (intron) within the coding region.
Directions: In the following question there are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answers as under:
1. If A and R both are correct and R is the correct explanation of A.
2. If A and R both are correct and R is not the correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.
- 1
- 2
- 3
- 4
- 5
Assertion (A): DNA shows hypochromicity on heating.
Reason (R): Heat denaturation of DNA causes the double helix structure to unwind to form single-stranded DNA.
Directions: In the following question there are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answers as under:
1. If A and R both are correct and R is the correct explanation of A.
2. If A and R both are correct and R is not the correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.
- 1
- 2
- 3
- 4
- 5