31. What is the best long-term solution for kidney failure?
[A] Kidney transplant
[B] Dialysis
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: A [Kidney transplant]
Notes:
A kidney transplant is the best long-term solution for kidney failure. Complete failure of the kidneys allows urea and other waste products to build up in the blood.
32. Which of the following is protein hormone?
[A] Oxytocin
[B] Insulin
[C] TSH
[D] Antidiuretic hormone
Show Answer
Correct Answer: B [Insulin]
Notes:
Insulin and human growth hormone are protein hormones while oxytocin and antidiuretic hormones are peptide hormones. TSH or Thyroid Stimulating Hormone consists of carbohydrates attached to protein hence it comes under glycoprotein hormone.
33. Which of the following cells of the testis secrete testosterone?
[A] sertoli cells
[B] cells of germinal epithelium
[C] cells of Leydig or interstitial cells
[D] secondary spermatocytes
Show Answer
Correct Answer: C [cells of Leydig or interstitial cells]
Notes:
Leydig or interstitial cells of the testis secrete testosterone. It is present outside the seminiferous tubules in the interstitial spaces.
34. The female Reproductive System creates egg cells that are essential for reproduction known as __
[A] Menstrual Cycle
[B] Pregnancy
[C] Fertilization
[D] Ova
Show Answer
Correct Answer: D [Ova]
Notes:
The female Reproductive System creates egg cells that are essential for reproduction known as Ova.
35. The outermost layer of the ovary is made up of ___.
[A] simple cuboidal cells
[B] stereocilia
[C] stroma
[D] cilia
Show Answer
Correct Answer: A [simple cuboidal cells]
Notes:
Ovarian or germinal epithelium is the outermost layer of the ovary composed of simple cuboidal cells. It is actually a modified visceral peritoneum.
36. Klinefelter’s syndrome is an example of which of the following disorder?
[A] Mendelian Disorder
[B] Mitochondrial Inheritance
[C] Multifactorial Genetic Inheritance
[D] Chromosomal Disorder
Show Answer
Correct Answer: D [Chromosomal Disorder]
Notes:
Klinefelter’s syndrome is an example of Chromosomal Disorder in which a genetic condition that results when a boy is born with an extra copy of the X chromosome.
37. Some strains of Bacillus thuringiensis can kill certain insects such as __.
[A] Lepidoptera
[B] scorpion
[C] fruit fly
[D] dragonfly
Show Answer
Correct Answer: A [Lepidoptera]
Notes:
Some strains of Bacillus thuringiensis can kill certain insects such as Lepidoptera. They are an order of insects consisting of moths and butterflies.
38. Which organism’s plasmid was first used to construct recombinant DNA?
[A] Cyanobacteria
[B] Bacillus subtilis
[C] Saccharomyces cerevisiae
[D] Salmonella typhimurium
Show Answer
Correct Answer: B [Bacillus subtilis]
Notes:
Bacillus subtilis organism’s plasmid was first used to construct recombinant DNA.
39. What is commonly known as white plague?
[A] Typhoid
[B] Malaria
[C] Tuberculosis
[D] Plague
Show Answer
Correct Answer: C [Tuberculosis]
Notes:
Tuberculosis caused by Mycobacterium tuberculie which primarily affects lungs although can affect other body too while early 19th century was called ‘white plague’ because of the large number of the people dying of its infection.
40. Jaws are absent in ____:
[A] Birds
[B] Fishes
[C] Reptiles
[D] Protochordata
Show Answer
Correct Answer: D [Protochordata]
Notes:
Jaws are absent in protochordata and cyclostomata (Agantho stoma). Protochordata refers to invertabrate subphylum of phylum chordata. It includes animals such as tunicates.
