Genetics and Plant Breeding SRF Question Paper 2020 ( Part B) Crop Sciences-I

Chi-square test has the following applications:
A. Test of segregation
B. Selection of genotype
C. Detection of genotype
D. Developing ANOVA table
Choose the correct answer:

1. B, D and E only

2. A, C and E only

3. B, C and D only

4. A, C and D only
   ✅ Correct Answer: Option 3

Statements:

• I: Under the PPV&FR Act, a variety with St-gene can be registered.
• II: Under the PPV&FR Act, a variety with RIP-gene can be registered.

Choose the most appropriate answer:

1. Both I and II are correct

2. Both I and II are incorrect

3. I is correct but II is incorrect

4. I is incorrect but II is correct
   ✅ Correct Answer: Option 1

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The Germination Value (GV) of tree seeds is calculated using the formula

1. GV = PV × MDG

2. GV = T × PV

3. GV = PV × B

4. GV = MDG × T
   ✅ Correct Answer: Question Dropped

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Match List I with List II

Species (List I)	Chromosome Number (List II)
A: Linum usitatissimum	I: n = 18
B: Cicer arietinum	II: n = 7
C: Brassica nigra	III: n = 8
D: Lens esculenta	IV: n = 15

Options:

1. A: I, B: II, C: III, D: IV

2. A: II, B: III, C: I, D: IV

3. A: IV, B: III, C: I, D: II

4. A: III, B: I, C: IV, D: II
   ✅ Correct Answer: Option 2

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E. R. Sears produced 21 monosomics in which wheat variety?

1. Einkorn

2. Chinese spring

3. Khorasan

4. Red spring
   ✅ Correct Answer: Option 4

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Which edible legume has glandular hairs and secretes oxalic and malic acids?

1. Vicia faba

2. Cajanus cajan

3. Vigna mungo

4. Cicer arietinum
   ✅ Correct Answer: Option 1

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Grow-out test for seed certification is compulsory in hybrids of:
A. Tomato
B. Brinjal
C. Castor
D. Maize
E. Pearl millet
Choose the correct answer:

1. A, B and C only

2. D, E and A only

3. D, A and C only

4. A, B, C, D and E only
   ✅ Correct Answer: Option 1

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Antibiotic resistance genes are mostly used as what kind of markers?

1. Selectable

2. Scorable

3. Countable

4. Molecular
   ✅ Correct Answer: Option 3

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Name the small cDNA sequence that represents a unique segment of an active gene

1. SNPs

2. snRNAs

3. ESTs

4. Contigs
   ✅ Correct Answer: Option 2

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Evidence for DNA as genetic material was obtained from which experiments?
A. Avery, McLeod, McCarty
B. Griffith
C. Conrat and Singer
D. Watson and Crick
E. Hershey and Chase
Options:

1. A and B only

2. A and E only

3. B and D only

4. C and D only
   ✅ Correct Answer: Option 2

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According to India's Patent Law, a patent has a time limit of

1. 15 years

2. 20 years

3. 7 years

4. 9 years
   ✅ Correct Answer: Option 2

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Which type of rice contains more dextrin in its endosperm?

1. Wild rice

2. Glutinous rice

3. Parboiled rice

4. Hand pound rice
   ✅ Correct Answer: Option 2

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Chemical stimulus used to break dormancy in orthodox seeds:

1. Sulphuric acid

2. Potassium nitrate

3. TTC

4. Formazane
   ✅ Correct Answer: Option 4

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If two AaBb individuals are crossed, what's the probability of offspring being aabb?

1. 1/16

2. 1/4

3. 1/8

4. 1/2
   ✅ Correct Answer: Option 1

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Non-random association of alleles at different loci is called:

1. Linkage disequilibrium

2. Linkage equilibrium

3. Mendelian population

4. QTL analysis
   ✅ Correct Answer: Option 2

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Loose smut is a seed-borne disease in:

1. Paddy

2. Wheat

3. Maize

4. Sorghum
   ✅ Correct Answer: Option 2

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Hybrid between plasmid and phage lambda chromosome is known as:

1. Plasmid vector

2. Cosmid vector

3. Fosmid vector

4. Binary vector
   ✅ Correct Answer: Option 4

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Translation occurs in association with:

1. Plastids

2. ER

3. Mitochondria

4. Ribosome and RNA
   ✅ Correct Answer: Option 4

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Requirements for Marker Assisted Backcross Breeding:
A. High heritability
B. Tightly linked marker with target gene
C. Flanking markers
D. Multi-location trial
Choose the correct combination:

1. A, D and E only

2. B, C and D only

3. B, D and E only

4. A, B and C only
   ✅ Correct Answer: Option 2

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Tool to assess plant genetic diversity by reducing variables into uncorrelated artificial variables:

1. Cluster analysis

2. PCA

3. Mahalanobis D² analysis

4. Cladogram
   ✅ Correct Answer: Option 4

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Expanded form of RAPD:

1. Randomly Amplified Polymorphic DNA

2. Random Amplification of Polymorphic DNA

3. Randomly Amplification of Polymorphic DNA

4. Random Amplified Polymorphic DNA
   ✅ Correct Answer: Option 2

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Loss in vigour due to inbreeding is more visible in:

1. Self-pollinated species

2. Cross-pollinated species

3. Apomictic species

4. Monoecious species
   ✅ Correct Answer: Option 1

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Cross-pollinated crops:
A. Sunflower
B. Cabbage
C. Chow-Chow
D. Groundnut
E. Moth Bean
Options:

1. A, B, C only

2. B, C, D only

3. E, A, B only

4. D, E, A only
   ✅ Correct Answer: Option 1

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Crop where allogamy is effected by 'tripping':

1. Medicago sativa

2. Clitoria ternatea

3. Desmanthus tortuosum

4. Macropterium atropurpureum
   ✅ Correct Answer: Option 2

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Under IPR, what protects the intellectual property created by inventors?

1. Copyright

2. Patents

3. Trademarks

4. Registered design
   ✅ Correct Answer: Option 1

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Match List I with List II:

Crop	Isolation Distance
A: Hybrid rice	I: 400 m
B: Johnson Grass	II: 800 m
C: Sesame	III: 100 m
D: Carrot	IV: 50 m

Options:

1. A: III, B: I, C: IV, D: II

2. A: III, B: I, C: II, D: IV

3. A: IV, B: II, C: III, D: I

4. A: I, B: II, C: III, D: IV
   ✅ Correct Answer: Option 4

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Given population:

Heterozygotes = 160
Homozygous recessive = 20
Homozygous dominants = 320
Frequency of dominant allele?

1. 10%

2. 40%

3. 32%

4. 80%
   ✅ Correct Answer: Option 2

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Vigna species with drought and heat tolerance traits:

1. Vigna radiata

2. Vigna aconitifolia

3. Vigna riukiuensis

4. Vigna tenucaulis
   ✅ Correct Answer: Option 4

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DUS testing is necessary for:
A. Certification of a variety
B. Release and notification of a variety
C. Protection of a variety
Choose the correct option:

1. A only

2. B only

3. C only

4. A, B and C
   ✅ Correct Answer: Option 3

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Most successful technique to conserve pollen grains:

1. Organic solvent method

2. Desiccation freeze drying

3. Cryopreservation

4. Low temp storage (-20°C)
   ✅ Correct Answer: Option 2

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Certified seed classes under Seeds Act:
A. Breeder Seed
B. Foundation Seed
C. Certified Seed
D. Nucleus Seed
E. Quality Declared Seed
Correct answer:

1. A and D only

2. B and C only

3. D and E only

4. E and C only
   ✅ Correct Answer: Option 3

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Match List I with List II (Maize types):

Corn Type	Botanical Name Variant
A: Pod corn	III: Zea mays var. tunicata
B: Pop corn	I: Zea mays var. everta
C: Wax corn	II: Zea mays var. ceratina
D: Flint corn	IV: Zea mays var. indurata

✅ Correct Answer: Option 1

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Crop rich in calcium, iron, and niacin:

1. Finger millet

2. Chickpea

3. Lima bean

4. Redgram
   ✅ Correct Answer: Option 4

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Under ITPGRFA, number of crops exchangeable via SMTA:

1. 95 food & 35 fodder crops

2. 24 food & 15 fodder crops

3. 132 food & 29 fodder crops

4. 35 food & 29 fodder crops
   ✅ Correct Answer: Option 3

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Adventive embryony is an example of:

1. Vegetative propagation

2. Amphimixis

3. Agamospermy

4. Parthenogamy
   ✅ Correct Answer: Option 4

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Cajanus species used to introgress salt tolerance:

1. Cajanus scarabaides

2. Cajanus lanceolatus

3. Cajanus platicarpus

4. Cajanus albicans
   ✅ Correct Answer: Option 2

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Organization maintaining global conservation inventory of species:

1. WWF

2. IUCN

3. MAB

4. IBWL
   ✅ Correct Answer: Option 1

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Oil-rich part of Elaeis guineensis fruit:

1. Mesocarp

2. Endocarp

3. Endosperm

4. Exocarp
   ✅ Correct Answer: Option 4

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Global initiative for multilateral system of PGR access (via SMTA):

1. Bioversity International

2. Commission on Genetic Resources for Food and Agriculture

3. Global Plan of Action

4. International Treaty for PGRFA
   ✅ Correct Answer: Option 1

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ISTA rules for determining seed viability of a seed lot:

1. Four replications of 100 seeds each

2. Three replications of 50 seeds each

3. Four replications of 50 seeds each

4. Three replications of 100 seeds each
   ✅ Correct Answer: Option 1

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Morgan discovered linkage while studying two genes in Drosophila on the:

1. X-chromosome

2. Y-chromosome

3. Autosomes

4. Cytoplasm
   ✅ Correct Answer: Option 1

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Leaf spot is a seed-borne disease in:

1. Sesame

2. Groundnut

3. Castor

4. Linseed
   ✅ Correct Answer: Option 2

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Seed multiplication ratio of paddy is:

1. 1:60

2. 1:80

3. 1:40

4. 1:100
   ✅ Correct Answer: Option 4

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CSTL (Central Seed Testing Laboratory) is located at:

1. New Delhi

2. Lucknow

3. Patna

4. Varanasi
   ✅ Correct Answer: Option 3

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Preferred wheat types for high-quality chapati in India:
A. Soft wheat
B. Hard wheat
C. Triticum aestivum
D. Triticum durum
E. Triticum dicoccum
Options:

1. A and C only

2. B and D only

3. B and C only

4. A and E only
   ✅ Correct Answer: Option 1

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Requirements for AFLP (Amplified Fragment Length Polymorphism) marker:
A. Random primers
B. Restriction enzymes
C. Adaptors
D. PCR
E. Short sequence repeats
Options:

1. B, C and D only

2. A, B and E only

3. B, D and E only

4. A, B and C only
   ✅ Correct Answer: Option 1

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Provision of 'Seed Register' is included in:

1. Seed Bill

2. PPV & FR Act

3. Seed Control Order

4. Seeds Act
   ✅ Correct Answer: Option 3

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Two-line hybrid seed production system is possible in:

1. CMS

2. GMS

3. TGMS

4. CGMS
   ✅ Correct Answer: Option 4

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Non-Mendelian inheritance includes:

1. Maternal effect only

2. Maternal effect and epigenetic inheritance only

3. Epigenetic and extranuclear inheritance only

4. Maternal effect, epigenetic, and extranuclear inheritance only
   ✅ Correct Answer: Option 2

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