31. Which of the following female reproductive organs produces female gametes?
[A] Ovaries
[B] Uterus
[C] Fallopian tubes
[D] Vagina
Show Answer
Correct Answer: A [Ovaries]
Notes:
Ovaries are the female reproductive organs that produce female gametes. It is also responsible for producing various hormones.
32. Which of the following microorganism causes a bacterial disease in a poultry farm?
[A] Ascaridia galli
[B] Mycobacterium avium
[C] Eimeria
[D] Paramyxovirus
Show Answer
Correct Answer: B [Mycobacterium avium]
Notes:
Mycobacterium avium microorganism causes a bacterial disease in a poultry farm.
33. Which of the following diseases is not caused by the RNA virus?
[A] Yellow fever
[B] Smallpox
[C] Mumps
[D] German measles
Show Answer
Correct Answer: B [Smallpox]
Notes:
Yellow fever, Mumps, and German measles are caused by the RNA virus. Whereas Smallpox is caused by the DNA virus.
34. Which of the following is an example of nonsense mutation?
[A] Sickle cell anaemia
[B] Cystic fibrosis
[C] Opitz-Kaveggia syndrome
[D] None of these
Show Answer
Correct Answer: B [Cystic fibrosis]
Notes:
Cystic fibrosis is an example of nonsense mutation. While Sickle cell anemia is an example of missense mutation.
35. GM rice is enriched with which of the following vitamin?
[A] K
[B] E
[C] A
[D] D
Show Answer
Correct Answer: C [A]
Notes:
GM rice is enriched with vitamins A. Genetically modified rice are strains of rice that have been genetically modified.
36. The blotting technique used to identify the isolated protein is _____:
[A] Western blotting
[B] Northern blotting
[C] Southern blotting
[D] Cloning
Show Answer
Correct Answer: A [Western blotting]
Notes:
Protein electrophoresis and Western blotting are both methods used to identify specific proteins in a sample or solution. Western blotting, also known as immunoblotting or protein blotting, is a core technique in cell and molecular biology. It is used to detect the presence of a specific protein in a complex mixture extracted from cells.
37. The pouch connected to the junction of the small intestine and the large intestine is called ___:
[A] Condyle
[B] Coccyx
[C] Caecum
[D] Axilla
Show Answer
Correct Answer: C [Caecum]
Notes:
Cecum is a pouch connected to the junction of the small and large intestines. It is a large tube-like structure in the lower abdominal cavity that receives undigested food material from the small intestine and is considered the first region of the large intestine. It is separated from the ileum (the final portion of the small intestine) by the ileocecal valve (also called Bauhin valve). The main functions of the cecum are to absorb fluids and salts that remain after completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus.
38. The largest White Blood Corpuscle is ____:
[A] Lymphocyte
[B] Monocyte
[C] Thrombocyte
[D] Erythrocyte
Show Answer
Correct Answer: B [Monocyte]
Notes:
Monocytes are the largest white blood cell about 20m in diameter. When they leave the blood they’re called macrophages. Macrophages work with lymphocytes as antigen presenting cells.
39. Which type of reproduction occurs in hydra?
[A] Budding
[B] Fragmentation
[C] Binary Fission
[D] Spore Formation
Show Answer
Correct Answer: A [Budding]
Notes:
• Budding reproduction occur in Hydra. Budding is an asexual mode of producing new organisms. Both hydra and yeast reproduce by the process of Budding.
• Fragmentation: Cyanobacteria, fungi, flatworms, sponges, some annelid worms and sea stars.
• Binary Fission: Amoeba, E. coli, Archaea, euglena etc.
• Spore formation: Fungi, bacteria, Algae etc.
40. The sugar present in DNA is ____:
[A] Pentose
[B] Xylulose
[C] Hexose
[D] Heptulose
Show Answer
Correct Answer: A [Pentose]
Notes:
The sugar present in DNA is 2-deoxyribose, which is a pentose sugar. Deoxyribose is one of the three components of nucleotides, the building blocks of DNA. Each nucleotide consists of a phosphate group, a nitrogenous base—adenine (A), thymine (T), cytosine (C), or guanine (G)—and deoxyribose.
