11. What does B denote in the term RBCs ?
[A] Build
[B] Blood
[C] Bloody
[D] Building
Show Answer
Correct Answer: B [Blood]
Notes:
The term RBC stands for Red Blood Cells (RBCs) which performs the function of transferring oxygen to other tissues of the body. The RBCs are also known as Red Blood Corpuscles.
12. Biometric is related to which of the following statement?
[A] the process of ageing, and the particular problems of old people
[B] heredity and variation
[C] body measurements and calculations related to human characteristics
[D] transmission of paternal traits to progeny
Show Answer
Correct Answer: C [body measurements and calculations related to human characteristics]
Notes:
Biometrics are calculations related to body measurements and human characteristics. Biometric authentication is used in computer science as a form of identification and access control.
13. Traumatology is related to which of the following statement?
[A] Study of hair
[B] Study of skates and rays
[C] Study of wounds and turnover
[D] Study of nutrition
Show Answer
Correct Answer: C [Study of wounds and turnover]
Notes:
Traumatology is the study of wounds and injuries caused to a person by accidents or violence, and the surgery and repair of damage.
14. Which of the following is milk sugar?
[A] Glucose
[B] Maltose
[C] Fructose
[D] Lactose
Show Answer
Correct Answer: D [Lactose]
Notes:
Lactose is known as milk sugar, and it is found in the milk of many mammals including humans and cows. Lactose is a disaccharide consisting of one unit of galactose and one unit of glucose.
15. A protein that binds to operators or stoperators within prophage to prevent transcription of lytic genes is called__?
[A] immunity repressor
[B] immunity operon
[C] operon repressor
[D] None of these
Show Answer
Correct Answer: A [immunity repressor]
Notes:
A protein that binds to operators or stoperators within prophage to prevent transcription of lytic genes is called immunity repressor.
16. Viruses reproduce in living cells by__?
[A] replication
[B] duplication
[C] multiplication
[D] all of these
Show Answer
Correct Answer: A [replication]
Notes:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
17. A single polar flagellum is known as__?
[A] monotrichous
[B] lophotrichous
[C] amphitrichous
[D] none of these
Show Answer
Correct Answer: A [monotrichous]
Notes:
Monotrichous bacteria have a single flagellum. Lophotrichous bacteria have multiple flagella located at the same location on bacterial surfaces that work together to steer the bacteria in the same direction.
18. What are autotrophic thallophytes called?
[A] Fungi
[B] Algae
[C] Bacteria
[D] Virus
Show Answer
Correct Answer: B [Algae]
Notes:
Thallophytes are commonly known as algae. Algae are chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic organisms. They are found in a wide variety of habitats such as moist rocks, soil and wood.
19. Which of the following also play a role in protecting plants against bacterial and fungal infections?
[A] Jasmonates
[B] Oligosaccharins
[C] Strigolactones
[D] Brassinosteroids
Show Answer
Correct Answer: B [Oligosaccharins]
Notes:
Oligosaccharides also play a role in protecting plants against bacterial and fungal infections. They act locally at the site of injury. They can also be carried to other tissues.
20. Which fruit is produced by parthenocarpy?
[A] Brinjal
[B] Apple
[C] Banana
[D] Jackfruit
Show Answer
Correct Answer: C [Banana]
Notes:
Banana fruit is produced by parthenocarpy. The process of development of fruit without any prior fertilization is called parthenocarpy.
