11. A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which one of the blood groups mentioned below and readily available in the hospital will be safe for transfusion?
[A] O, Rh-
[B] O, Rh+
[C] AB, Rh-
[D] AB, Rh+
Show Answer
Correct Answer: B [O, Rh+]
Notes:
There is no A and B antigen on RBC of “O– ”bloodgroup , So O, Rh– is known as universal blood donor.
12. Which vitamin is also called as retinol?
[A] Vitamin A
[B] Vitamin C
[C] Vitamin D
[D] Vitamin K
Show Answer
Correct Answer: A [Vitamin A]
Notes:
Vitamin A is also called as retinol deficiency of which results in xeropthalmia. Chemical formula for Vitamin A is C20H30O.
13. Gonyaulax, which are known for causing red tides, belong to which of the following?
[A] Algae
[B] Fungi
[C] Protista
[D] Bacteria
Show Answer
Correct Answer: C [Protista ]
Notes:
Red tides are caused by Gonyaulax which are small, microscopic organisms that grow in water and also called dinoflagellates.
14. Which of the following statements are correct about Golgi bodies?
[A] Camillo Golgi discovered the Golgi apparatus.
[B] found in the eukaryotic cells
[C] It is a sac-like organelle
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Camillo Golgi discovered Golgi bodies in 1898. Golgi bodies are found in eukaryotic cells and are involved in the packaging of protein and lipid molecules.
15. Which of the following is not a form of bacteria?
[A] Coccus
[B] Bacillus
[C] Vibrio
[D] Lobosa
Show Answer
Correct Answer: D [Lobosa]
Notes:
Lobosa is a taxonomic group of amoeba in the Amoebozoa genus.
16. In bryophytes, antherozoids are__?
[A] Biflagellate
[B] Multiflagellate
[C] Sometimes biflagellate and sometimes multiflagellate
[D] Biflagellate in a few species and multiflagellate in the rest
Show Answer
Correct Answer: A [Biflagellate]
Notes:
Antheridium is a type of spherical male sex organ that produces dizygotic spermatozoa (antherozoid). Both flagellae are similar, apically fused, and are whiplash-type.
17. Bryophytes comprise__?
[A] The sporophyte is of longer duration
[B] Dominant phase of sporophyte which is parasitic
[C] Dominant phase of gametophyte which produces spores
[D] Small sporophyte phase and generally parasitic on the gametophyte
Show Answer
Correct Answer: D [Small sporophyte phase and generally parasitic on the gametophyte]
Notes:
The sporophyte is never independent inside the bryophytes, but parasitizes on the gametophytic plant, either partially for water and mineral supply or entirely for organic food.
18. Gymnosperms are called naked seed plants because of the lack of which of the following?
[A] Cotyledon
[B] Endosperm
[C] Ovary Wall
[D] Testa
Show Answer
Correct Answer: C [Ovary Wall]
Notes:
Gymnosperms are called naked seed plants because of the lack of Ovary Wall.
19. Anthracnose of grapes is caused by__.
[A] Elsinoe ampelina
[B] Greenaria viticola
[C] Plasmopara viticola
[D] Uncinula necator
Show Answer
Correct Answer: A [Elsinoe ampelina]
Notes:
Anthracnose is caused by the fungus Elsinoe ampelina. It is also known as bird’s eye rot because of its appearance on the fruit.
20. The pelvic girdle of birds is attached to a complex structure formed by the fusion of the last thoracic, all lumbar, and the first five caudal vertebrae. What is this structure called?
[A] Synsacrum
[B] Symphysis
[C] Synkaryon
[D] Sympelvis
Show Answer
Correct Answer: A [Synsacrum]
Notes:
The pelvic girdle of birds is attached to a complex structure formed by the fusion of the last thoracic, all lumbar, and the first five caudal vertebrae are called Synsacrum.
