31. The undigested food stored in the liver in the form of carbohydrates is called __
[A] Pulp
[B] Glucose
[C] Glycogen
[D] Carbohydrate
Show Answer
Correct Answer: C [Glycogen]
Notes:
Glycogen is the undigested food stored in the liver in the form of carbohydrates.
32. A layer of cells immediately surrounding the ovum but outside the zona pellucida is called__.
[A] germinal epithelium
[B] corona radiata
[C] theca interna
[D] membrane granulosa
Show Answer
Correct Answer: B [corona radiata]
Notes:
A layer of cells immediately surrounding the ovum but outside the zona pellucida is called corona radiata.
33. Which of the following is an example of chromosomal disorders?
[A] Down’s syndrome
[B] Albinism
[C] Haemophilia
[D] Sickle cell anaemia
Show Answer
Correct Answer: A [Down’s syndrome]
Notes:
Down’s syndrome is an example of a chromosomal disorder. Whereas Albinism, Haemophilia, and Sickle cell anemia are examples of Mendelian Disorder.
34. Leber’s Hereditary Optic Atrophy is a type of __
[A] Chromosomal Disorder
[B] Multifactorial Genetic Inheritance
[C] Mitochondrial Inheritance
[D] Mendelian Disorder
Show Answer
Correct Answer: C [Mitochondrial Inheritance]
Notes:
Leber’s Hereditary Optic Atrophy is a type of Mitochondrial Inheritance that occurs due to mutations in a single gene and can be easily detected by pedigree analysis.
35. Which of the following are the benefits of vermicomposting?
[A] develops roots of the plants
[B] increases the fertility and water-resistance of the soil
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
The benefits of vermicomposting are to develop roots of the plants, improve the physical structure of the soil, and increase the fertility and water-resistance of the soil.
36. Which of the following is used as a tool to insert genes into bacteria to stimulate the production of therapeutic proteins such as human insulin?
[A] Plasmid
[B] Nitrogenous base
[C] Bacteria
[D] RNA
Show Answer
Correct Answer: A [Plasmid]
Notes:
A plasmid is used as a tool to insert genes into bacteria to stimulate the production of therapeutic proteins such as human insulin.
37. Approximately how many pairs are there in the human genome?
[A] 6 billion base pairs
[B] 5 billion base pairs
[C] 3 billion base pairs
[D] 4 billion base pairs
Show Answer
Correct Answer: C [3 billion base pairs]
Notes:
Approximately 3 billion base pairs are there in the human genome. The complete set of nucleic acid sequences for humans encoded as DNA within 23 chromosome pairs in the cell nucleus and a small DNA molecule found within individual mitochondria is called the human genome.
38. What is Blood?
[A] Muscular tissue
[B] Epithelial tissue
[C] Reproductive tissue
[D] Connective tissue
Show Answer
Correct Answer: D [Connective tissue]
Notes:
Blood is considered a connective tissue for two basic reasons:
(i) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and
(ii) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.
39. Which among the following constitutes the central nervous system in human body?
[A] Only brain
[B] Only blood
[C] Only spinal cord
[D] Both brain and spinal cord
Show Answer
Correct Answer: D [Both brain and spinal cord]
Notes:
The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. Both the brain and spinal cord are protected by a three-layered covering of connective tissuecalled the meninges.
40. What are the folds found in the mucous lining of the empty stomach?
[A] Typhlosole
[B] Areolae
[C] Rugae
[D] Villi
Show Answer
Correct Answer: C [Rugae]
Notes:
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
