Practice Genetics evolution of life and ecological biodiversity - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) How many pairs of contrasting characters in pea pod were chosen by Mendel?
(a)
(b)
(c)
(d)
Mendel in his experiment considered total 7 characters (3 characters of seed i.e., seed shape, seed colour, cotyledon colour, 2 characters of pod i.e., plant height and position of pods on the stem).
Q-2) The number of autosomes in human female ovum is
(a)
(b)
(c)
(d)
In human female ovum, number of autosome are 22 pairs.
Q-3) In Down's syndrome of a male child, the sex complement is
(a)
(b)
(c)
(d)
Q-4) How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
(a)
(b)
(c)
(d)
Q-5) Which of the following is not a bird?
(a)
(b)
(c)
(d)
Q-6) All are ecosystems except
(a)
(b)
(c)
(d)
Q-7) The taxonomic unit ‘Phylum’ in the classification of animals is equivalent to which hierachial level in classification of plants
(a)
(b)
(c)
(d)
Q-8) Match List-I with List-II :
List-I
List-II
A. Theory of mutation
1. Beadle and Tatum
B. Theory of evolution
2. Jacob and Monod
C. One gene one enzyme hypothesis
3. Darwin
D. Operon concept
4. Hugo De Vries
Select the correct answer from the codes given below the lists: (A) (B) (C) (D)
| List-I | List-II |
| A. Theory of mutation | 1. Beadle and Tatum |
| B. Theory of evolution | 2. Jacob and Monod |
| C. One gene one enzyme hypothesis | 3. Darwin |
| D. Operon concept | 4. Hugo De Vries |
(a)
(b)
(c)
(d)
Q-9) In case of incomplete dominance the monohybrid ratio of phenotypes in F2 generation is
(a)
(b)
(c)
(d)
Q-10) Which of the following does not contain chlorophyll?
(a)
(b)
(c)
(d)
Q-11) All producers are
(a)
(b)
(c)
(d)
Q-12) Consider the following statements :
- Life can originate on earth from pre-existing life only.
- The atmosphere of the primitive earth was reducing.
Which of these statement(s) is/are correct ?
(a)
(b)
(c)
(d)
Q-13) Insects have
(a)
(b)
(c)
(d)
Class insecta has 3 pairs of legs located on the thoracic segments. It is the characteristic feature of class Insecta.
Q-14) The term ‘Survival of Fittest’ was used by
(a)
(b)
(c)
(d)
Herbert Spencer
He is a sociologist, who coined the phrase “survival of fittest” to explain the tendency of human society to change by itself as the strongest and fittest survive while the weak abolish themselves.
Q-15) Which one of the following organisms is not an example of eukaryotic cells ?
(a)
(b)
(c)
(d)
E. coli is a prokaryotic celled gram negative bacterium.
Q-16) Who propounded the theory of evolution?
(a)
(b)
(c)
(d)
Q-17) Match Column-I with Column-II :
Column-I
Column-II
A. Wing of a bat and wing of a bird
P. darwin
B. Dihybrid ratio
Q. Mendel
C. Natural selection
R. Analogous organ
D. Arm of a man and wing of a bird
S. Homologous organs
Select the correct answer from the codes given below the lists: (A) (B) (C) (D)
| Column-I | Column-II |
| A. Wing of a bat and wing of a bird | P. darwin |
| B. Dihybrid ratio | Q. Mendel |
| C. Natural selection | R. Analogous organ |
| D. Arm of a man and wing of a bird | S. Homologous organs |
(a)
(b)
(c)
(d)
Q-18) What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
(a)
(b)
(c)
(d)
Q-19) Which one of the following is not a feature of eutrophic lakes?
(a)
(b)
(c)
(d)
Q-20) Vestigial organs are those present in the living beings without functions gives and mark the correct option for vestigeal organs in humans
(a)
(b)
(c)
(d)
These 'useless' body parts, otherwise known as vestigial organs, are remnants of lost functions that our ancestors possessed. They once represented a function that evolved out of a necessity for survival, but over time that function became non-existent.