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Genetics MCQ

87 MCQ questions with answers and explanations · page 1 of 4

Test yourself▶ 25 question test▶ 50 question test

Q1. Who is the father of Genetics ?

  1. ADarwin
  2. BMendel
  3. CBridge
  4. DWiseman
Show answer & explanation

Answer: B) Mendel

Q2. Word gene was given by -

  1. AMorgan
  2. BMendal
  3. CJohansen
  4. DD Bridge
Show answer & explanation

Answer: C) Johansen

Q3. Unit of heredity is -

  1. AGene
  2. BChromosomes
  3. CChromatin
  4. DNone of these
Show answer & explanation

Answer: A) Gene

Q4. Mendal worked on -

  1. AEdible pea
  2. BWild pea
  3. CGarden pea
  4. DPegion pea
Show answer & explanation

Answer: C) Garden pea

Q5. Gene are made up of -

  1. ADNA
  2. BRNA
  3. CDNA & RNA
  4. Dprotein
Show answer & explanation

Answer: A) DNA

Q6. A genetically engineered form of brinjal Known as the BT-brinjal has been developed The objective of this is

  1. ATo make it pest resistant
  2. BTo improve its taste and nutritive value
  3. CTo make it drought resistant
  4. DTo make its….longer
Show answer & explanation

Answer: A) To make it pest resistant

Q7. Polynucleotide chain of DNA contains

  1. AA nitrogenous base, deoxyribosesugar and Phosphate group
  2. BA nitrogenous base, ribose sugar and phosphate group
  3. CDeoxyribose sugar ribose sugar and phosphate group
  4. DA nitrogenous base and phosphate group only
Show answer & explanation

Answer: A) A nitrogenous base, deoxyribosesugar and Phosphate group

Q8. The process of copying genetic information from one strand of DNA into RNA is termed as

  1. ATranslation
  2. BTranscription
  3. CReplication
  4. DMutation
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Answer: B) Transcription

Q9. Syngamy results in formation of -

  1. AHaploid zygote
  2. BDiploid zygote
  3. CNon-motile male gametes
  4. DMotile male gametes
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Answer: B) Diploid zygote

Q10. Mendel' s law were rediscovered by-

  1. ACorrens
  2. BTshermak
  3. CDeveries
  4. DAll of these
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Answer: D) All of these

Q11. Mendel's second law is the law of -

  1. Alndependent assortment
  2. BSegregation
  3. CDominance
  4. DPolygenic inheritance
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Answer: B) Segregation

Q12. Which one is exception to Mendel's principle of dominance ?

  1. AWild pea
  2. BMirablius
  3. CGarden pea
  4. DMaize
Show answer & explanation

Answer: B) Mirablius

Q13. DNA fingerprinting is a technique used for the detection of -

  1. AAlzheimer's disease
  2. BDisputed parentage
  3. CAlDS
  4. DYellow fever
Show answer & explanation

Answer: B) Disputed parentage

Q14. The subunits of DNA are known as:

  1. ANucleotide
  2. BNucleosome
  3. CNucleoside
  4. DPolypeptide
Show answer & explanation

Answer: A) Nucleotide

Q15. Change in base sequence within the gene is called -

  1. ABreeding
  2. Bcloning
  3. CMutation
  4. DFusion
Show answer & explanation

Answer: C) Mutation

Q16. Ribozymes are-

  1. ADNA
  2. BRNA
  3. CProteins
  4. DNone of these
Show answer & explanation

Answer: B) RNA

Q17. Monohybrid ration of Mendal' s cross is -

  1. A9 : 3:3:1
  2. B0.12569444444444
  3. C0.042361111111111
  4. D0.084027777777778
Show answer & explanation

Answer: B) 0.12569444444444

Q18. Who got noble prize for artificial synthesis od DNA ?

  1. AM. Calvin
  2. BKhorana
  3. CTatum
  4. DKornberg
Show answer & explanation

Answer: D) Kornberg

Q19. One gene enzyme theory is given by -

  1. AWatson and Crick
  2. BHargovind Khurana
  3. CBeadle and Tatum
  4. DMorgan
Show answer & explanation

Answer: C) Beadle and Tatum

Q20. Which of the following is responsible for controlling hereditary characters of the living cells ?

  1. AEnzyme
  2. BHormone
  3. CRNA
  4. DDNA (e) None of the above /More than one of the above
Show answer & explanation

Answer: D) DNA (e) None of the above /More than one of the above

Q21. The Golden Rice contains B-carotene gene which comes from-

  1. ACarrot
  2. BDaffodil
  3. CBeetroot
  4. DPapaya
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Answer: B) Daffodil

Q22. Sex chromosome in human male are named-

  1. AXX
  2. BXO
  3. CXY
  4. DNone
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Answer: C) XY

Q23. Chromosomes are best seen in-

  1. AInterphase
  2. BProphase
  3. CMetaphase
  4. DTelophase
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Answer: C) Metaphase

Q24. The term mutation was was introduced by-

  1. ALamarck
  2. BDarwin
  3. CHugo devries
  4. DMendal
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Answer: C) Hugo devries

Q25. Genetic material found in cell is-

  1. ADNA
  2. BRNA
  3. CProtein
  4. DCarbohydrate
Show answer & explanation

Answer: A) DNA

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