
MP Board Class 12 Biology Question Paper 2024: The Madhya Pradesh Board of Secondary Education (MPBSE) has successfully conducted Class 12 Biology exam for the year 2024 on Friday, February 16, 2024. The examination proceeded smoothly, and there were no reported complaints from students. Entry to the exam hall was permitted only with a valid MP Board 12th Admit Card 2024. As per the timetable, the MP Board Class 12th Biology Paper 2024 was held from 9:00 a.m. to 12:00 p.m. Candidates who appeared for the exam are currently searching for the MP Board Biology Question Paper 2024 Answer Key online. Physics Wallah has provided the unofficial answer key in PDF format for each set on their website. Stay tuned to this page for updates.
| Highlight | Description |
|---|---|
| Exam Name | Class 12 Boards |
| Conducting Body | Madhya Pradesh Board of Secondary Education (MPBSE) |
| State | Madhya Pradesh |
| Official Website | mpbse.nic.in |
| Subject | Biology |
| Exam Date | February 16, 2024 (Friday) |
| Exam Timing | 9:00 a.m. - 12:00 noon |
| Exam Duration | 3 hours |
| Total Marks | 70 |
| Overall Difficulty Level | Moderate to difficult |
Question No. 1 to 5: 28 objective-type subparts
Question No. 6 to 12: 2 marks each
Question No. 13 to 16: 3 marks each
Question No. 17 to 20: 4 marks each
Choose and write the correct option:
(i) Mycorrhiza is an example of:
(a) Parasitism (b) Commensalism (c) Mutualism (d) DecomposerAnswer: (c) Mutualism
(ii) How many chromosomes are present in endosperm (Angiosperm)?
(a) n (Haploid) (b) 2n (Diploid) (c) 3n (Triploid) (d) 4n (Tetraploid)Answer: (c) 3n (Triploid)
(iii) Persistent nucellus in the seed is known as:
(a) lilum (c) Chalaza (b) Tegmen (d) PerispermAnswer: (d) Perisperm
(iv) In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplet code is for valine?
(a) GGG (b) AAG (c) GAA (d) GUGAnswer: (d) GUG
(v) In malaria, the product released by mosquito into blood that causes chill and fever:
(a) Haematin (b) Schuffner’s dots (c) Hacmozoin (d) HaemotoxinAnswer: (c) Hacmozoin
(vi) In agarose gel electrophoresis, DNA molecules are reparted on the basis of their:
(a) charge only (c) volume only (b) size only (d) charge and shapeAnswer: (b) size only
1 सही विकल्प चुनकर लिखिए :
(i) सिकल सेल एनीमिया (दात्र कोशिका – अरक्तता) में ग्लूटैमिक अम्ल वैलीन द्वारा प्रतिस्थापित हो जाता है। निम्नलिखित में से कौन-सा एक त्रिक कूट वैलीन के लिए है ?
(a) GGG (b) AAG (c) GAA (d) GUGAnswer: (d) GUG
ii) मलेरिया के मच्छर द्वारा रुधिर में निर्मुक्त उत्पाद जो ठण्ड तथा बुखार उत्पन्न करता है –
(a) हीमैटिन (b) स्कफनर्स बिन्दु (c) हीमोजोइन (d) हीमोटॉक्सिनAnswer: (c) हीमोजोइन
(iii) ऐगारोज जेल इलेक्ट्रोफोरेसिस में डी.एन.ए. अणुओं का विलगन किस आधार पर होता है?
(a) केवल आवेश (b) केवल माप (आकार) (c) केवल आयतन (d) आवेश और आकारAnswer: (b) केवल माप (आकार)
(iv) माइकोराइजा उदाहरण है –
(a) परजीविता (b) सहभोजिता (c) सहोपकारिता (d) अपघटकAnswer: (b) सहभोजिता
(v) भ्रूणपोष (आवृतबीजी) में कितने क्रोमोसोम होते हैं?
(a) n (अगुणित) (c) 3n (त्रिगुणित) (b) 2n (द्विगुणित) (d) 4n (चतुर्गुणित)Answer: (c) 3n (त्रिगुणित)
(vi) बीज में अवशिष्ट बीजाण्डकाय को क्या कहा जाता है?
(a) नामिका (b) अन्तःकवच (c) निभाग (d) परिभ्रूणपोषAnswer: d) परिभ्रूणपोष
2 Fill in the blanks with the correct answer: (i) Proinsulin contains _________________ which is not found in mature insulin.Answer: C-peptide
(ii) ___________________ is caused by a mutation in a gene related to the adenosine deaminase enzyme.Answer: SCID
iii) The green plant in ine ecosystem are called_____________Answer: Producer
(iv) The process of release of ovum from a mature follicle is called_____________Answer: Ovulation.
v) DNA fingerprinting involves identifying differences in some specific regions in Sequence called____________________Answer: Repetitive DNA
(vi) Lactic acid bacteria convert milk into_________________Answer: Curd
3. Write True/False: (i) Clarias gariepinus for aquaculture purposes is posing a threat to the indigenous catfishes in our rivers.Answer: True
(ii) Humans are oviparous.Answer: False
(iii) Syphilis is a sexually transmitted disease.Answer: True
(iv) Lichens cannot be used as industrial pollution indicators.Answer: False
(v) Genes that cause cancer are called oncogenes.Answer: True
(vi) Each interferon has its own specialtyAnswer: True
4. Match the correct pair and write :
| Term | Definition |
|---|---|
| (i) PBR322 | (d) vectors |
| (ii) Corona radiata | (e) ovum |
| (iii) Structural genes | (b) z. y and a |
| (iv) T-Lymphocytes | (c) bone marrow |
| (v) Competition | (a) detrimental interaction |
Answer:
(i) PBR322 -(d) vectors (ii) Corona radiata – (e) ovum (iii) Structural genes-(b) z. y and a (iv) T-Lymphocytes -(c) bone marrow (v) Competition-(a) detrimental interaction5. Write answer in the one sentence:
(i) How do cytokine barriers provide innate immunity in humans?
Answer: Interferons
(ii) Write down the name of bacterium which produces ‘Bt’ toxin.
Answer: Bacillus thuringiensis (Bt),
(iii) What is called ‘lungs of the earth’?
Answer: Amazon Tropical rainforests
(iv) Write the full form of ZIFT.
Answer: Zygote intrafallopian transfer (ZIFT)
(v) What substances did Miller take in his experiments?
Answer: methane, water, hydrogen, and ammonia
6. What is biopatent?
ORWhat is golden rice? Write about it.
7. What do you understand by population density?
ORDefine camouflage and write an example.
8. What is hot spot? Write the name of a hot spot in India
ORName the three important components of bio-diversity.
9. What is amniocentesis ? Give its significance.
ORWhat is MTP? Write its safety periods,
10. What is point mutation? Give an example.
ORThe human male never passes on gene for haemophilia to his son. Why
11. What is adaptive radiation? Give an example.
ORWrite Hardy-Weinberg principle.
12. Why are cynobacteria considered useful in paddy fields?
ORWhy does Swiss cheese have big holes?
13. Write three differences between Biopesticides and Chemical pesticides.
ORDraw a neat and clean labeled diagram of Biogas plant.
14. Why pyramid of energy is always upright? Explain it.
ORDescribe the interrelationship between productivity, gross primary productivity and net productivity.
