JAC 12th Biology Important Questions Ch 5

JAC 12th Biology Ch 5 Important Questions : झारखण्ड बोर्ड कक्षा 12th सभी विद्यार्थियों के लिए Biology में chapter 5 Principles of Inheritance and variations के पिछले वर्षो में जो भी प्रश्न पूछे गए हैं, उनकी चर्चा हम इसमें करेंगे तो इन Important Questions को पढ़ लीजिए.

रांची: झारखंड एकेडमिक काउंसिल ( JAC Board) कक्षा JAC 12th Biology Important Questions के पिछले वर्षों के सभी महत्वपूर्ण प्रश्न (important Questions) आपको यहाँ पर बताए जा रहे है, जो बोर्ड परीक्षा 2023 के लिए बहुत महत्वपूर्ण है. अगर आप इन सभी प्रश्नों को याद कर लेते हो तो अवश्य ही आप JAC Board class 12th Biology  exam 2023 में अच्छे अंक प्राप्त कर सकते हो.

विद्यार्थी इसका उत्तर स्वयं करें। ये सारे प्रश्न आपके परीक्षा (JAC 12th Biology Important Questions For Board Exams)में बार – बार पूछे जा रहे है। इसमें आपको सभी chapter का अलग-अलग पिछले 16 वर्षों के महत्वपूर्ण प्रश्न मिलेंगे। यानि 2006-2020 इसमें आपको ये भी बताया जा रहा है कि कौन से प्रश्न किस तरह से एवं कितने Biology के पूछे जा रहें है.

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JAC 12th Biology Important Questions Ch 5 – Overview

Name of Organisation	Jharkhand Academic Council Ranchi
Category	Important Question
Article	JAC 12th Biology Important Questions
State	Jharkhand
Question Types	Previous Year & Important Questions
Class	12th(Inter)
Stream	Science
Subject	Biology
Chapter	5th Chapter
Chapter Name	Principles of Inheritance and variations
Telegram	Join Us

परीक्षा की तैयारी कैसे करें?

• Study Schedule बनाएं : एक Study schedule बनाए ताकि आप जेएसी(JAC Board) 12वीं routine 2023 की सहायता से पहले ही पूरा syllabus कवर कर सके, परीक्षा से पहले सिलेबस को पूरा करने से revision के लिए पर्याप्त समय मिलेगा.
• Short Notes बनाएं : विषयोंको Important Point में सारांशित करके छोटे नोट्स बनाने से रिवीजन भाग को आसान बनाने में मदद मिलेगी, इसके अलावा छात्र विषयों का रिवीजन करने के लिए हर जगह भारी पाठ्य पुस्तकें ले जाने से बच सकते है

• परीक्षा से पहले पूरा करें Syllabus : 12वीं के syllabus का पता होना छात्रों के लिए important है क्योंकि इससे महत्वपूर्ण विषयों, परीक्षा की अवधि और अंकन योजना के बारे में जानकारी मिलती है. छात्रों को सलाह दी गई है कि वे 12वीं Routine 2023 जारी होने से पहले पाठ्यक्रम को पूरा कर ले।
• पिछले साल के प्रश्नपत्रों को हल करें :पिछले साल के 12वीं के प्रश्न पत्री का अभ्यास करना परीक्षा को सफलतापूर्वक पास करने की कुंजी है, तैयारी के स्तर का आत्म विश्लेषण करने के लिए छात्रों को सभी subjects के प्रश्न पत्रों का revision करना चाहिए, इसके अलावा यह students को समय प्रबंधन सीखने और गणना की गति में सुधार करने में भी help कर सकता है.

JAC 12th Biology Ch 5 Previous Years Important Questions-

1 marks Question

Q1.Name the cross where F1- individual is crossed with recessive one? [JAC2009]
Q2. How many pairs of contrasting characters were studied by Mendel?[JAC 2009]
Q3.Write the number of the opposite-paired characters on which Mendel work? [JAC 2011]
Q4. If two plants (aaBB and AaBB) are crossed, what will be genotypic ratio of theF1 generation? (AaBB:|aaBB|AaBB:3aaBB)
[JAC2012]

Q5. Which of these is a sex-linked ininheritance? [JAC2012]
a) Haemophilia
b) Diabetes
c) Influenza
d) Tuberculosis
Q6. Blood of which group can be given to a patient of any blood group?[JAC2012]
a) O
b) A
c) AB
d) AB
Q7. Crossing over occurs between:-
a) Centrioles
b) Centromeres
c) Non-sister chromatids
d) Sister chromatids [JAC 2014]

Q8. Genes of which code for a pair of contrasting traits are known as:-
a) Heterozygous
b) Alleles
c) Homozygous
d) Recessive [JAC 2015]
Q9. The two contrasting aspects of the same character used in mendel’s experiment are called:-
a) Gene
b) Phenotype
c) Genotype
d) Allelomorph. [JAC 2016]
Q10. Mendel’s principle was Rediscovered:-
a) Hugo de vries
b) E. Von Tschermak
c) Correns
d) All of them. [JAC 2016]

Q11. When a red skinned animal is crossed with white skinned animal then Roan coloured animal is produced in F1 generation. this shows:-
a) Co-dominance
b) Complete dominance
c) Incomplete dominance
d) Linkage. [JAC 2016]
Q12. When only one pair of contrasting traits are considered in a cross, it is called:-
a) Monohybrid cross
b) Dihybrid cross
c) Single cross
d) Double cross [JAC 2016]
Q13. The chromosomal theory of inheritance was proved doing experiment on fruit fly (Drosophila melangaster) by:-
a) Mendel
b) Sutton and Boveri
c) Thomas hunt Morgan
d) Henking [JAC 2016]

Q14.Mycorrhiza is a relation between:-
a) Higher plant roots and Glomus
b) Algae and fungi
c) Protozoan and algae
d) Leguminous roots and Rhizobium [JAC 2016]
Q15. Who had coined the term ‘Mutation’?
a) Morgan
b) Hugo De vries
c) Alexander Flemming
d) Dixon and jolly [JAC 2017]
Q16. Crossing over takes place during which of the following stages?
a) Diplotene
b) Pachytene
c) Leptotene
d) Diakinesis [JAC2017]

Q17. A cross between hybrid and recessive parent is called:-
a) Back cross
b) Test cross
c) Monohybrid cross
d) Dihybrid cross [JAC2017]
Q18. Complete linkage is observed in:-
a) Drosophila
b) Snake
c) Birds
d) Man [JAC2017]
Q19. Which law of Mendel is described by incomplete dominance?
a) Law of dominance
b) Law of segregation
c) Law of independent assortment
d) All of these [JAC 2018]

Q20. Mendel monohybrid ratio is:-
a) 2:1
b) 3:1
c) 9:3:3:1
d) 9:7 [JAC2018]
Q21. How many pairs of contrasting characters were studied by Mendel?
a) 5 pairs
b) 6 pairs
c) 7 pairs
d) 8 pairs [JAC2018]
Q22. The inheritance of flower colour (pink) in mirabilis Jalapa is example of:-
a) Incomplete dominance
b) Co-dominance
c) Linkage
d) Complete dominance [JAC 2019]
Q23. Morgan’s experiment were on:-
a) Housefly
b) Fruit fly
c) Sand fly
d) Mosquito [JAC 2019]

Q24. Genes which code for a pair of contrasting traits are known as:-
a) Parthenogenesis
b) Gametogenesis
c) Spermatogenesis
d) Oogenesis [JAC 2019]
Q25. In honey bee sex determination and development is through:-
a) Parthenogenesis
b) Gametogenesis
c) Spermatogenesis
d) Oogenesis [JAC 2019]
Q26. Mendel dihybrid ratio is:-
a) 2:1
b) 3:1
c) 9:3:3:1
d) 9:7 [JAC 2019]

Q27. The ratio of monohybrid cross is :-
a) 9:3:3:1
b) 3:1
c) 1:2:1
d) 2:1 [JAC 2020]
Q28. The ratio of dihybrid cross is:-
a) 3:1
b) 9:3:3:1
c) 9:7
d) 12:3:1 [JAC 2020]

2 marks questions

Q1. What are multiple Alleles ? Give two examples. [JAC 2010]
Q2. Write about mendel in four lines. [JAC2010]
Q3. Mention mendel’s advantages in selecting the pea plant for experiments. [JAC2012]
Q4.Haemophilia victims are mostly men but very rarely woman are affected by this defect. Why is it so? [JAC2012]

Q5.Write the chromosomal configuration of klinefelter syndrome and Turner’s syndrome? [JAC2013]
Q6. How many types of blood groups are found in human beings?Which blood group is called Universal Donor?[JAC2014]
Q7. Write any two significance of linkage. [JAC2016]
Q8. What is test cross? Show Phenotypic ratio 1: 1 in a monohybrid test cross through Punnet square. [JAC2018]

Q9. Define crossing over.[JAC2018]
Q10. What do you understand by the term ‘hormone’? [JAC 2019]
Q11. What is co-dominance? Give one example.[JAC 2020]
Q12. Define test cross and draw diagram. [JAC 2020]

3 marks questions

Q1. The human male never passes on the gene for haemophilia to his son. Why is it show? [JAC2010]
Q2. Discuss the phenomenon of ‘ incomplete dominance’ with example.[JAC2011]
Q3. Differentiate between ‘aneuploidy’ and ‘polyploidy’.[JAC2011]

Q4.Explain haemophilia and sickle cell anaemia.[JAC2013]
Q5. What are the differences between a monohybrid and dihybrid cross?[JAC2016]
Q6. How many types of blood groups are found in human being?Which blood group is universal Donor? [JAC2016]

5 marks Questions

Q1. Explain the law of dominance using monohybrid cross. [JAC2010]
Q2. What do you understand by chromosomal theory of inheritance? [JAC2011, 2012]
Q3. Describe mendel’s law of segregation. [JAC2013,2017]
Q4. Explain Mendel’s monohybrid cross. Mention the phenotype and genotype ratio obtained.[JAC2014]

Q5. What is a test cross? Show phenotypic ratio 1:1 in a monohybrid test cross through Punnet square. ? [JAC2015]
Q6. What is linkage? who coined the term? write the name of insect
used for this studies. [JAC2015]
Q7. What is haemophilia? write its sex -linked inheritance pattern. [JAC2015]
Q8. Explain Mendel’s law of segregation through suitable example. [JAC2015)

Q9.Describe sex -linked inheritance with the help of an example. [JAC2016]
Q10. Distinguish between back cross and test cross.[JAC2016]
Q11. Describe the inheritance pattern of blood groups in human beings. [JAC2017]

Q12. How will you differentiate between complete dominance and incomplete dominance explain them with example.[JAC2017]
Q13. What are the differences between incomplete dominance and co-dominance ? explain with example. [JAC2018]

JAC 12th Biology Ch 5 Important question FAQ’s

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Conclusion –

उम्मीद करते हैं या आर्टिकल(JAC 12th Biology Important Questions [Ch 5]) आपको पसंद आया होगा अगर आया हो तो कृपया करके अपना प्यारा सा कंमेंट नीचे कर दे उसके साथ ही अधिक अपडेट जानने के लिए हमारे टेलीग्राम ग्रुप में ज्वाइन कर ले.