MPSC PYQ

Plant Breeding

Plant Breeding is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2013, 2017). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.

Real questions
2
Years tested
2 · 2013–2017
In context
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What you need to know first

Basic agriculture practicesSeed industry roleMendelian GeneticsPollination

Real questions that test this

औद्योगिक देशांत पूर्वी चांगल्या प्रजातींची पैदास करणारे शेतकरी आजकाल करत नाहीत कारण : In industrial countries the farmers who earlier did plant breeding are no more resorting to it because :

(a)शासकीय शास्त्रज्ञ आता ते स्वतः करीत आहेत / Govt. scientists want to take it upon themselves.

(b)खाजगी कंपन्या हे काम आपल्या लाभासाठी करत आहेत. / Private companies undertake plant breeding for their interests

(c)शेतकरी दुसऱ्या कामात व्यग्र आहेत. / The farmers are busy otherwise.

(d)शेतकऱ्यांना आपली जमीन दुसऱ्या कामासाठी वापरायची आहे. / The farmers want to put their land to other use.

1)(a), (b) / (a) and (b)
2)(c), (d) / (c) and (d)
3)(a), (b), (c) / (a), (b) and (c)
4)(a), (b), (c), (d) / (a), (b), (c) and (d)✓ Correct

In industrialized nations, traditional on-farm plant breeding has declined because government scientists, private seed corporations, busy schedules, and land-use diversification have all collectively shifted the landscape.

शुद्ध जातीच्या वाण म्हणजे Pure line breed refers to

1)भिन्न अनुवंशिक गुणसूत्राच्या जोड्या आणि संबंध / Heterozygosity and linkage
2)फक्त भिन्न अनुवंशिक गुणसूत्राच्या जोड्या / Only heterozygosity
3)सारख्या अनुवंशिक गुणसूत्राच्या जोड्या आणि प्रतवारीने लावलेला संग्रह / Homozygosity and self assortment
4)फक्त सारख्या अनुवंशिक गुणसूत्राच्या जोड्या / Only homozygosity✓ Correct

A pure line refers to a population of individuals that are genetically identical and homozygous, produced through continuous self-pollination.

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