11. Who was awarded the Nobel Prize in Medicine for the discovery of cell signalers?
[A] Alfred G. Gilman
[B] Martin Rodbell
[C] Both 1 & 2
[D] None of these
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Alfred G. Gilman and Martin Rodbell were awarded the Nobel Prize in Medicine for the discovery of cell signalers called G-proteins.
12. Which of the following is not an example of Fungi?
[A] Mushroom
[B] Euglena
[C] Mucor
[D] Albugo
Show Answer
Correct Answer: B [Euglena]
Notes:
Euglena is an example of Protista. Mushroom, Mucor, and Albugo are part of Fungi.
13. Where is cytochrome P450 found in the cell?
[A] lysosomes
[B] endoplasmic reticulum
[C] ribosomes
[D] None of these
Show Answer
Correct Answer: B [endoplasmic reticulum]
Notes:
Cytochrome P450 is a large family of well-conserved integral membrane proteins. It is mainly localized in the membrane of the endoplasmic reticulum (ER).
14. Which of the following statements are correct about Golgi bodies?
[A] Camillo Golgi discovered the Golgi apparatus.
[B] found in the eukaryotic cells
[C] It is a sac-like organelle
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Camillo Golgi discovered Golgi bodies in 1898. Golgi bodies are found in eukaryotic cells and are involved in the packaging of protein and lipid molecules.
15. Which of the following viruses is not linked to human cancer?
[A] Hepatitis C virus
[B] Hepatitis B virus
[C] Varicella-Zoster virus
[D] Herpes simplex virus type 2
Show Answer
Correct Answer: C [Varicella-Zoster virus]
Notes:
Hepatitis C, Hepatitis B and Herpes simplex virus type 2 viruses which are linked to human cancer.
16. Enzyme neuraminidase is carried by which of the following virus?
[A] Human immunodeficiency virus
[B] Epstein-Barr virus
[C] Influenza virus
[D] Adenovirus
Show Answer
Correct Answer: C [Influenza virus]
Notes:
Viral neuraminidase is a type of neuraminidase found on the surface of the influenza virus that enables the virus to be released from the host cell. Neuraminidases are enzymes that dissociate sialic acid groups from glycoproteins.
17. Which of the following are non-motile, highly thickened asexual spores called?
[A] Hypnospores
[B] Aplanospores
[C] Macrozoospores
[D] Microzoospores
Show Answer
Correct Answer: A [Hypnospores]
Notes:
Hypnospores are thick-walled structures that form under unfavorable conditions. Under prolonged unfavorable conditions, the protoplasm of hypnospores divides to form cysts. Cysts are capable of forming new thallus.
18. Oyster mushroom is an example of predator fungi that attacks__?
[A] Tapeworms
[B] Pinworms
[C] Platyhelminthes
[D] Roundworms
Show Answer
Correct Answer: D [Roundworms]
Notes:
The oyster mushroom is an example of a predatory fungus that attacks roundworms.
19. Which of the following is a type of apomixis?
[A] diplospory
[B] apospory
[C] adventitious embryony
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Apomixis can be best described as a reference to the asexual process. Three types of apomixis are recognized – diplospory, apospory, and adventitious embryo.
20. Cells in triploblastic animals are arranged in three embryonic layers, which of the following is not a layer of triploblastic?
[A] ectoderm
[B] endoderm
[C] exoderm
[D] mesoderm
Show Answer
Correct Answer: C [exoderm]
Notes:
Cells in triploblastic animals are arranged in three embryonic layers which are ectoderm, endoderm, and a middle layer is a mesoderm.
