31. Which of the following are also called natural killer cells?
[A] Monocytes
[B] Thrombocytes
[C] Lymphocytes
[D] Neutrophils
Show Answer
Correct Answer: C [Lymphocytes]
Notes:
Lymphocytes are also called natural killer cells and play a vital role in producing antibodies. Lymphocytes are of two types – B lymphocytes and T lymphocytes.
32. Initiates and maintains milk production in breasts:
[A] Prolactin
[B] Renin and angiotensin
[C] Oxytocin
[D] Erythropoietin
Show Answer
Correct Answer: A [Prolactin]
Notes:
Prolactin initiates and maintains milk production in breasts. Prolactin secretes by the Pituitary gland.
33. Which hormone regulates adrenocorticotropin release in the pituitary gland?
[A] Thyrotropin releasing hormone
[B] Corticotropin releasing hormone
[C] Gonadotropin releasing hormone
[D]
Thyroid-stimulating hormone
Show Answer
Correct Answer: B [Corticotropin releasing hormone]
Notes:
The corticotropin-releasing hormone regulates adrenocorticotropin release in the pituitary gland.
34. The ovary is surrounded by a thin covering of ___.
[A] epithelium
[B] ampulla
[C] isthmus
[D] infundibulum
Show Answer
Correct Answer: A [epithelium]
Notes:
The ovary is surrounded by a thin covering of epithelium, surrounds the ovarian stroma, and is divided into two regions – the outer cortex and the inner medulla.
35. Ovarian __ consists of a white body or corpus Albicans.
[A] cortex
[B] medulla
[C] antrum
[D] luteum
Show Answer
Correct Answer: A [cortex]
Notes:
The ovarian cortex consists of a white body or corpus Albicans. It represents the degenerative corpus luteum. The corpus luteum secretes hormones. Progesterone during pregnancy, and at the end of pregnancy, the hormone relaxes.
36. Which of the following organism causes pneumonia?
[A] Bacteria
[B] Protozoan
[C] Fungi
[D] Slime mould
Show Answer
Correct Answer: A [Bacteria]
Notes:
A common cause of bacterial pneumonia is Streptococcus pneumoniae. This is an infection of your lungs caused by certain bacteria.
37. Which of the following is not a bacterium which causes disease in a poultry farm?
[A] Tapeworm
[B] Haemophilus gallinarium
[C] Salmonella gallinarium
[D] Pasteurella avicida
Show Answer
Correct Answer: A [Tapeworm]
Notes:
Several species of tapeworms cause taeniasis. Salmonella gallinarium causes foul typhoid or salmonellosis. Haemophilus gallinarium causes foul coryza. Pasteurella avicida causes chicken cholera.
38. 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.
39. If a hybrid expresses a character, it is called __.
[A] Epistasis
[B] Dominant
[C] Co-dominant
[D] Recessive
Show Answer
Correct Answer: B [Dominant]
Notes:
If a hybrid expresses a character, it is called Dominant. And not expressing character is called recessive character.
40. What is another name of rDNA technology?
[A] chimeric DNA
[B] information technology
[C] information DNA
[D] chimeric technology
Show Answer
Correct Answer: A [chimeric DNA]
Notes:
chimeric DNA is another name of rDNA technology because it can be made of material from two different species, like mythological imagery. R-DNA technology uses palindromic sequences and leads to the production of sticky and blunt ends.
