Top-20 Important Biology Questions for RRB NTPC In English
Latest and most Important Biology Questions to crack RRB NTPC Exam. Download the PDF and go through the video explanations of most important Biology Questions and practice them by downloading the PDF provided below.
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Question 1: A special property of acids and bases is their ability to ……… each other’s properties.
a)Â Crystalize
b)Â Neutralize
c)Â Amortize
d)Â Naturalize
Question 2:Â A cross in which parents differ in a single pair of contrasting character is called
a)Â monohybrid cross
b)Â dihybrid cross
c)Â trihybrid cross
d)Â tetrahybrid cross
Question 3:Â The hybrid progeny in the first generation is called as
a)Â F0
b)Â F1
c)Â F2
d) F’
Question 4:Â F3 generation is obtained by
a)Â selfing of F1
b)Â selfing of F2
c)Â crossing of F1 and F2
d)Â none of these
Question 5:Â Monohybrid ratio is
a)Â 9:3:3:1
b)Â 9:1
c)Â 9:3:1
d)Â 3:1
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Question 6:Â The crossing of F1 to any one of the parents is called
a)Â back cross
b)Â test cross
c)Â F1 cross
d)Â all of these
Question 7:Â The best method to determine the homozygosity and heterozygosity of an individual is
a)Â self- fertilization
b)Â back cross
c)Â test cross
d)Â inbreeding
Question 8:Â The innate tendency of offspring to resemble their parents is called
a)Â variation
b)Â heridity
c)Â inheritance
d)Â resemblance
Question 9:Â Mendel was a
a)Â Austrian biology teacher
b)Â Austrian monk
c)Â Austrian scientist
d)Â Austrian mathematician
Question 10:Â Peptide bond is a
a)Â Covalent bond
b)Â Ionic bond
c)Â Metallic bond
d)Â Hydrogen bond
Question 11:Â Which one is a possible progeny in F2 generation of pure bred tall plant with round seed and short plant with wrinkled seeds?
a)Â Tall plant with round seeds
b)Â Tall plant with wrinkled seeds
c)Â Short plant with round seed
d)Â All of the above
Question 12:Â Which section of DNA provides information for one protein
a)Â Nucleus
b)Â Chromosomes
c)Â Trait
d)Â Gene
Question 13:Â Which of the following is not controlled by genes?
1) Weight of a person
2) Height of a person
a)Â only 1
b)Â only 2
c)Â both 1 and 2
d)Â sometimes 1 and sometimes 2
Question 14:Â What is the probability that the male progeny will be a boy?
a)Â 50%
b)Â 56%
c)Â 47.43%
d)Â It varies
Question 15:Â With whom you can associate theory of evolution?
a)Â Charles Darwin
b)Â Mendel
c)Â Stanley miller
d)Â Harold Urey
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Question 16:Â Homologous organ have
a)Â Same structure, same function
b)Â Different structure, different function
c)Â Same structure, different function
d)Â different structure, same function
Question 17:Â A photosynthetic organism which does not release oxygen is
a)Â Blue green algae
b)Â Green alga
c)Â Green sulphur Bacterium
d)Â Lichen
Question 18:Â 90% of the total photosynthesis is carried out by
a)Â algae
b)Â Mesophytes
c)Â Pteridophytes
d)Â Xerophytes
Question 19:Â An essential process connected with photosynthesis is
a)Â Synthesis of glucose
b)Â Photolysis of water
c)Â Photo phosphorylation
d)Â Breakdown of glucose
Question 20:Â The site of Dark reaction of photosynthesis is
a)Â grana
b)Â stroma
c)Â thaylakoids
d)Â Both (a) and (b)
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Answers & Solutions:
1) Answer (B)
2) Answer (A)
3) Answer (B)
4) Answer (B)
5) Answer (D)
6) Answer (A)
7) Answer (C)
8) Answer (B)
9) Answer (B)
10) Answer (A)
11) Answer (D)
12) Answer (D)
13) Answer (B)
14) Answer (A)
15) Answer (A)
16) Answer (C)
17) Answer (C)
18) Answer (A)
19) Answer (B)
20) Answer (B)
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