11. Which among the following blood groups is referred as the universal donor blood group?
[A] O -ve
[B] O +ve
[C] AB -ve
[D] AB +ve
Show Answer
Correct Answer: A [O -ve]
Notes:
The person with O-ve blood group is considered as the universal donor. Whereas a person with O +ve is not a universal donor as O +ve consists of Rh(Rhesus) factor which makes it incompatible for Rh -ve bloods.
12. Deficiency in which among the following leads to goitre?
[A] Iodine
[B] Calcium
[C] Phosporous
[D] Zinc
Show Answer
Correct Answer: A [Iodine]
Notes:
Goitre is a disorder caused due to the deficiency of iodine. Malfunction of thyroid gland leads to goitre (Swelling of neck). It is due to the bulge of the thyroid gland.
13. Serology is related to which of the following statements?
[A] Study of dietetics
[B] Study of snakes
[C] Study of serum
[D] Study of seeds
Show Answer
Correct Answer: C [Study of serum]
Notes:
Serology is the study of blood serum (the clear fluid that separates when blood clots).
14. In which branch of biology is the study of breasts deals?
[A] Mammology
[B] Mastology
[C] Malacology
[D] None of these
Show Answer
Correct Answer: B [Mastology]
Notes:
Mastology can refer to the study of the human breast and related diseases.
15. Who is known as the father of the word ecosystem?
[A] Carl Linnaeus
[B] Pier Antonio Micheli
[C] Arthur Tansley
[D] Edwin John Butler
Show Answer
Correct Answer: C [Arthur Tansley]
Notes:
The term ecosystem was coined by British ecologist Arthur Tansley in 1935.
16. The Six Kingdoms of Classification is also known as the latest classification system. By whom is it given?
[A] C Woese
[B] O Kandler
[C] Mc Wheels.
[D] Ernest Haeckel
Show Answer
Correct Answer: A [C Woese]
Notes:
In biology, a scheme of classifying organisms into six kingdoms: Proposed by Carl Woese et al: Animalia, Plantae, Fungi, Protista, Archaea/Archaeabacteria, and Bacteria/Eubacteria.
17. The gametophytic generation is predominant in which of the following?
[A] Pteridophyta
[B] Bryophyta
[C] Angiosperms
[D] Gymnosperms
Show Answer
Correct Answer: B [Bryophyta]
Notes:
Bryophytes are found in mosses and liverworts, in which the gametophyte is the major life stage, while in angiosperms and gymnosperms, the sporophyte is predominant.
18. Papaya foot rot is caused by which of the following?
[A] Phytophthora palmivora
[B] Albugo candida
[C] Peronospora parasitica
[D] Pythium aphanidermatum
Show Answer
Correct Answer: D [Pythium aphanidermatum]
Notes:
Papaya foot rot is caused by Pythium aphanidermatum. It is characterized by the presence of water-soaked patches on the stem near ground level.
19. Which one of the following is not a downy mildew fungus?
[A] Bremia Lectuca
[B] Uncinula Necator
[C] Sclerospora Graminocola
[D] Plasmopara Viticola
Show Answer
Correct Answer: B [Uncinula Necator]
Notes:
Uncinula necator is a fungus that causes powdery mildew of grape. The fungus is believed to have originated in North America.
20. Which of the following are the smallest organisms that cause disease in plants?
[A] Viruses
[B] Fungi
[C] Bacteria
[D] Mycoplasma
Show Answer
Correct Answer: D [Mycoplasma]
Notes:
Mycoplasma is the smallest organism that causes disease in plants. Mycoplasma is the smallest prokaryotic organism. It is capable of independent growth, division, and reproduction.
