set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 5 EXERCISES
The following question based on genetics, evolution of life & ecological biodiversity topic of general science mcq
(a) Pteridophytes
(b) Algae
(c) Bryophytes
(d) Gymnosperms
The correct answers to the above question in:
Answer: (d)
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Read more genetics evolution of life and ecological biodiversity Based General Science Questions and Answers
Question : 1
Which one of the following represents a test cross ?
a) Ww × Ww
b) Ww × ww
c) Ww × WW
d) WW × WW
Answer »Answer: (b)
Question : 2
Which of the following class of algae mostly found in salt water?
a) Chlorophyceae
b) Phaeophyceae
c) Rhodophyceae
d) Both (a) and (b)
Answer »Answer: (b)
Question : 3
Match List-I with List-II :
List-I (Indian wildlife species) | List-II (Scientific names) |
A. Asiatic wild ass | 1. Boselaphus tragocamelus |
B. Barasingha | 2. Rucervus duvauceli |
C. Chinkara | 3. Equus hemionus |
D. Nilgai | 4. Gazella bennettii |
a) A – 2; B – 3; C – 4; D – 1
b) A – 2; B – 3; C – 1; D – 4
c) A – 3; B – 2; C – 4; D – 1
d) A – 3; B – 2; C – 1; D – 4
Answer »Answer: (c)
Question : 4
All producers are
a) All autotrophs
b) Food making organisms
c) Make food in the presence of sunlight with chlorophyll
d) All the above
Answer »Question : 5
Which is not a stem modification ?
a) Pitcher of Nepenthes
b) Rhizome of ginger
c) Corm of Colocasia
d) Tuber of potato
Answer »Answer: (a)
Question : 6
Consider the following statements :
- Sickle cell anaemia is a genetic disease common in tropical and sub-tropical countries.
- Sickle-cell anaemia is due to mutation in β-globulin gene.
- Due to the sickle-shaped RBCS oxygen carrying capacity of the haemoglobin decreases.
a) 2 and 3
b) 1, 2 and 3
c) 1 only
d) 3 only
Answer »Answer: (b)
Due to mutation in the b-globulin gene of haemoglobin, the oxygen carrying capacity of RBCs decreases considerably, eventually causing sickle cell andaemia.
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