set 4 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) Increasing cranial capacity
(b) Shortening of jaws
(c) Binocular vision
(d) Upright posture.
The correct answers to the above question in:
Answer: (a)
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Read more genetics evolution of life and ecological biodiversity Based General Science Questions and Answers
Question : 1
Which of the following does not contain chlorophyll?
a) Bryophyta
b) Fungi
c) Algae
d) Pteridophyta
Answer »Answer: (b)
Question : 2
Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception ?
a) Chondrichthyes : possess cartilagious endoskeleton
b) Reptilia : possess 3 - chambered heart with one incompletely divided ventricle
c) Chordata : possess a mouth provided with an upper and lower jaw
d) Mammalia : give birth to young one.
Answer »Answer: (a)
Chondrichthyes are the cartilaginous fish with a flexible skeleton made of cartilage rather than bone.
Question : 4
Fossils are
a) Remains of plants and animals that are still surviving
b) Remains of deadly plants and animals that are extinct
c) Both (a) & (b)
d) None of the above
Answer »Answer: (c)
Question : 5
Consider the following statements :
- Allosomes, are chromosome which are responsible for determination of sex, e.g., X and Y-chromosomes.
- Autosomes, are chromosomes, which determine the somatic characters.
a) 1 and 2
b) 2 only
c) 1 only
d) None
Answer »Answer: (a)
Autosomes determine somatic characters and are present in humans as 21 pairs while sex chromosomes or allosomes are X and Y chromosomes are present as 2 pairs.
Question : 6
In case of incomplete dominance the monohybrid ratio of phenotypes in F2 generation is
a) 3 : 1 : 1
b) 9 : 3 : 3 : 1
c) 1 : 2 : 1
d) 2 : 3 : 1
Answer »Answer: (c)
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