11. Cattle quickly swallow grass and store it in which of its body parts?
[A] Rumen
[B] Esophagus
[C] Small intestine
[D] Salivary glands
Show Answer
Correct Answer: A [Rumen]
Notes:
Cattle quickly swallow grass and store it in rumen. The rumen serves as a large fermentation vat in which bacteria and other microorganisms reside. The rumen, also known as a paunch, forms the larger part of the reticulorumen
12. Which pigment is responsible for the colour of healthy skin in human beings?
[A] Bilirubin
[B] Haemoglobin
[C] Melanin
[D] Progesterone
Show Answer
Correct Answer: C [Melanin]
Notes:
The single most factor responsible for the cpolour of the skin is the pigment melanin. It is secreted by the melanocytes within the skin.
13. Which blood group is referred to as universal recipient?
[A] AB +ve
[B] AB -ve
[C] O +ve
[D] O -ve
Show Answer
Correct Answer: A [AB +ve]
Notes:
Persons with AB +ve blood group are called as universal recipients as they can get blood from persons with any of the blood groups. AB -ve cannot be regarded as universal donor as it cannot accept blood from persons with Rh factor.
14. What does H denote in the popular term HIV ?
[A] Human
[B] Higher
[C] Hybrid
[D] NOTA
Show Answer
Correct Answer: A [Human]
Notes:
The Human Immunodeficiency Virus (HIV) are two species of lentivirus. It causes life-threatening disease of AIDS in humans and infects them. HIV is a sexually transmitted infection and occurs by contact with or transfer of blood, pre-ejaculate, semen, and vaginal fluids.
15. 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.
16. Who among the following first discovered the process of digestion?
[A] Nehemiah Grew
[B] William Beaumont
[C] Alister Hardy
[D] None of these
Show Answer
Correct Answer: B [William Beaumont]
Notes:
William Beaumont was a US Army surgeon who was the first to observe and study human digestion occurring in the stomach.
17. Who among the following has given four kingdom classifications?
[A] Ernest Haeckel
[B] Copeland
[C] RH Whittaker
[D] Carolus Linnaeus
Show Answer
Correct Answer: B [Copeland]
Notes:
Copeland introduced the Four kingdom of classifications(Monera, Protista, Plantae and Animalia).
18. Name the signal that helps the protein to move in or out of the nucleus?
[A] Notch signal
[B] Paracrine signal
[C] Nuclear localization signal
[D] Chemical signals
Show Answer
Correct Answer: C [Nuclear localization signal]
Notes:
Nuclear localization signals are also known as nuclear-export signals. It helps in importing and exporting proteins into the nucleus through nuclear pores. These signals are the sequence of specific amino acids present on the protein.
19. Which of the following virus has its envelope from the host cell nucleus?
[A] Paramyxoviruses
[B] Retroviruses
[C] Orthomyxoviruses
[D] Herpesviruses
Show Answer
Correct Answer: D [Herpesviruses]
Notes:
The Herpesviridae are a large family of DNA viruses. It causes infections and some diseases in animals, including humans. Herpes viruses are divided into three groups: α herpesviruses, herpes simplex virus types 1 and 2.
20. 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.
