11. Which statement is true for the capsid?
[A] It consists of capsomeres
[B] This the outermost layer of most viruses
[C] It protects genetic material
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A capsid is the protein shell of a type of virus, which encloses its genetic material.
12. Which of the following contains an anticodon?
[A] tRNA
[B] mRNA
[C] rRNA
[D] DNA
Show Answer
Correct Answer: A [tRNA]
Notes:
An anticodon is found at one end of the transfer RNA (tRNA) molecule. During protein synthesis, each time an amino acid is added to the growing protein. A tRNA forms base pairs with its complementary sequence on the mRNA molecule and ensures that the appropriate amino acid is inserted into the protein.
13. Which virus is most susceptible to chloroform?
[A] Herpes
[B] Influenza
[C] Measles
[D] All of these
Show Answer
Correct Answer: D [All of these]
Notes:
Herpes, Influenza and Measles viruses are most susceptible to chloroform.
14. Which of the following bacteria spreads Plague?
[A] Salmonella
[B] Campylobacter
[C] E. coli & Shigella
[D] Yersinia pestis
Show Answer
Correct Answer: D [Yersinia pestis]
Notes:
Plague is a disease affecting humans and other mammals that is caused by the bacterium Yersinia pestis. Humans commonly get plague after being bitten by a rodent flea that carries the plague bacterium.
15. What type of respiration occurs in all higher organisms?
[A] Aerobic Respiration
[B] Anaerobic Respiration
[C] Both 1 and 2
[D] Cheyne-Stokes respiration
Show Answer
Correct Answer: A [Aerobic Respiration]
Notes:
Aerobic respiration type of respiration occurs in all higher organisms like mammals.
16. Pollination where the transfer of pollen between anthers and stigmas of different flowers of the same plant or different plants of the same species is called__.
[A] Self-Pollination
[B] Cross-Pollination
[C] Fertilization
[D] Adoption
Show Answer
Correct Answer: B [Cross-Pollination]
Notes:
Pollination where the transfer of pollen between anthers and stigmas of different flowers of the same plant or different plants of the same species is called Cross-Pollination.
17. What are the Characteristics of Platyhelminthes?
[A] They are triploblastic, acoelomate, and bilaterally symmetrical
[B] free-living or parasites
[C] do not have a digestive tract
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Platyhelminthes are triploblastic, acoelomate, and bilaterally symmetrical, free-living, or parasites that do not have a digestive tract.
18. The hippocampus (sea horse) belongs to the class?
[A] Agnatha
[B] Chondrichtyes
[C] Osteichthyes
[D] Mammalia
Show Answer
Correct Answer: B [Chondrichtyes]
Notes:
The hippocampus (sea horse) belongs to the class Chondrichthyes. Chondrichthyes are a class of jawed fish with a cartilaginous skeleton.
19. Which of the following belongs to the Order Pinnipedia?
[A] whale
[B] cow
[C] mole
[D] sea lion
Show Answer
Correct Answer: D [sea lion]
Notes:
Sealion belongs to the Order Pinnipedi. Sea lions are pinnipeds characterized by flapping outer ears, long foreflippers, the ability to walk around, short, thick hair, and a large chest.
20. Our sense of smell also helps us to recognize which of the following?
[A] tastes
[B] temperature
[C] environment
[D] time
Show Answer
Correct Answer: A [tastes]
Notes:
Our sense of smell also helps us to recognize tastes.
