RPSC Rajasthan AARO Botany 2024 Solved Paper (English) — Agri Master Mind
Inversion which does NOT involve centromere is called a -
- Tandem duplication
- Reverse duplication
- Pericentric inversion
- Paracentric inversion
Which of the following contains best example of overlapping genes?
- trp operon
- lac operon
-
E. Coli phage
genome
-
Human
-globin gene
The centre ‘Centro Internacional de Mejoramiento de Maiz y Trigo’ is located at -
- Italy
- Mexico
- France
- Brazil
The genetic purity of nucleus and breeder seed should be -
- %
- %
- %
- %
The characters governed by polygenes are called -
- Classical traits
- Natural traits
- Quantitative traits
- Qualitative traits
Conservation of germplasm away from its natural habitat is called -
- Ex-situ conservation
- In-situ conservation
- Gene sanctuary
- None of the above
Digestive enzymes are contained in -
- Mitochondria
- Golgi bodies
- Lysosomes
- Ribosomes
Replacement of one purine by another purine or one pyrimidine by another pyrimidine is called
- Transversion
- Transition
- Duplication
- Inversion
Cobalt-60 is commonly used for the production of -
- Gamma rays
- Beta rays
- Alpha rays
- Ultra-Violet rays
Which one is an example of dioecious species?
- Date palm
- Castor
- Maize
- Coconut
Diploid chromosome number in Zea mays is -
Molecular probes are -
- Both small DNA and small RNA segments
- Both small DNA and small protein molecules
- Both small molecules of protein and carbohydrates
- Both small RNA and small protein molecules
The primary role of molecular chaperones is -
- Degrading proteins
- Catalyzing protein phosphorylation
- Translating mRNA
- Assisting in correct protein folding
Match Column (A) with Column (B) and choose the correct answer from the code given below -
- -(c), (II)-(a), (III)-(d), (IV)-(b)
- -(b), (II)-(c), (III)-(d), (IV)-(a)
- -(a), (II)-(b), (III)-(c), (IV)-(d)
- -(d), (II)-(b), (III)-(a), (IV)-(c)
Adverse effect of host plant on the development and reproduction of insect pests which feed on resistant plant is referred as -
- Antixenosis
- Antibiosis
- Tolerance
- None of these
Which method is most appropriate for incorporating a single major gene for disease resistance into an elite variety without altering its other traits?
- Synthetic variety development
- Mutation breeding
- Backcross breeding
- Mass selection
Process of bringing wild species under human management is called -
- Domestication
- Introduction
- Acclimatization
- Stabilization
A character, which is expressed in one of the two parents only, is known as
- Sex influenced trait
- Sex limited trait
- Sex linked trait
- None of the above
The term bioinformatics is derived from the fusion of -
- Biotechnology, Computing and Medicine
- Biochemistry, Informatics and Genomics
- Biology, Information Technology and Statistics
- Biology, Genetics and Data Science
When additional segment of chromosome is located in a non-homologous chromosome, then it is called -
- Translocation duplication
- Reverse duplication
- Displaced duplication
- Tandem duplication
When both the alleles of a gene express themselves in the heterozygote, then it is called -
- Incomplete dominance
- Co-dominance
- Over dominance
- Complete dominance
Match Column-A with Column-B and choose the correct answer…
- -(b), (II)-(c), (III)-(d), (IV)-(a)
- -(a), (II)-(b), (III)-(d), (IV)-(c)
- -(d), (II)-(a), (III)-(b), (IV)-(c)
- -(b), (II)-(d), (III)-(c), (IV)-(a)
Which of the following is correct about DNA sequencing?
- (I), (II) and (IV)
- (I), (II), (III) and (IV)
- (I), (III) and (IV)
- (II), (III) and (IV)
Under the Seeds Act, notification of a crop variety is done with which objective?
- To ensure its registration under Plant Variety Protection Act.
- To empower Seed Inspectors to regulate and verify seed quality through sampling and analysis.
- To facilitate compulsory seed multiplication by State Seed Corporations.
- To authorize private seed companies to market the variety without restrictions.
RNAi has NOT been used in one of the following -
- Reduction of delta-cadinene synthase levels in cotton
- Increase in pelshenke values in wheat
- Develop ring-spot resistance in papaya
- Increase shelf-life of tomato
In cotton, gene for Helicoverpa resistance has been transferred from -
- Particle bombardment
- Liposomes
- Micro-injection
- Bacillus thuringiensis
Minor gene resistance is also known as -
- Horizontal resistance
- Avoidance
- Vertical resistance
- Tolerance
The main function of the Material Transfer Agreement (MTA) in germplasm exchange is to -
- establish trade tariffs.
- exchange only horticultural crops.
- set legal terms for germplasm use, rights and obligations.
- facilitate only GM seed exchange.
In which year the National Seed Corporation was initiated?
Which histone variant is associated with centromeric chromatin?
- H2A.Z
- H3.3
- CENP-A
- H1
The world’s first mutant variety of cotton is -
- MA – 6
- MA – 9
- MA – 3
- MA – 12
Which of the following is correct about QTL mapping?
- (II), (III), (IV)
- (III), (IV)
- (I), (II), (IV)
- (I), (II), (III)
In seed certification of maize, the maximum “lot size” is generally limited up to which weight?
- ,000 kg
- ,000 kg
- ,000 kg
- ,000 kg
Barnase/Barstar gene has been used for hybrid seed production of -
- Maize
- Soybean
- Brassica
- Potato
International Board for Plant Genetic Resources (IBPGR) was established in FAO in the year -
For a marker to be considered as tightly linked to a gene/QTL, its distance should be less than -
- cM
- cM
- cM
- cM
When some factor of the environment interferes with the complete expression of genotypic potential, it is termed as -
- Mutation
- Tolerance
- Stress
- Resistance
Which of the following is NOT a way of fixation of heterosis?
- Apomixis
- Asexual reproduction
- Mechanical mixture
- Balanced lethal system
“BLAST” is a -
- Database mining tool
- Synthetic gene
- Molecular gene
- Kozak sequencing
The regional station of NBPGR in Rajasthan is located at -
- Udaipur
- Jodhpur
- Jaipur
- Bikaner
Most Type II restriction endonucleases cleave DNA -
- at replication origins
- at random positions
- at promoter regions only
- within their recognition sites
If number of inbreeds = 8, how many three-way crosses can be made?
Which of the eukaryotic cell organelle resembles prokaryotic cell?
- Peroxisomes
- Mitochondria
- Golgi bodies
- Lysosomes
Which of the following correctly pairs the organelle with its primary function?
- Lysosome - ATP production
- Smooth Endoplasmic Reticulum - DNA replication
- Golgi apparatus - Packaging of cell substances
- Mitochondria - Protein glycosylation
Tift 23A is an important source of male sterility in -
- Oats
- Maize
- Pearl millet
- Sorghum
In Cytoplasmic Genetic Male Sterility (CGMS), fertility restoration is due to -
- Nuclear restorer genes
- Application of plant hormones
- Reciprocal crossing
- Temperature treatment
Which protein complex links transcription with DNA repair in NER (Nucleotide Excision Repair)?
- DNA glycosylase
- RNA polymerase enzyme II
- TFIIH
- DNA ligase enzyme III
What is the frequency of recessive homozygotes, if the frequency of ‘A’ allele (p) in a Hardy-Weinberg equilibrium population?
What is the correct formula for simple correlation estimation?
Match Column-A with Column-B and choose the correct answer from the code given below -
- -(d), (II)-(a), (III)-(c), (IV)-(b)
- -(c), (II)-(d), (III)-(a), (IV)-(b)
- -(a), (II)-(b), (III)-(c), (IV)-(d)
- -(b), (II)-(c), (III)-(d), (IV)-(a)
In taxonomy, the presence of bicollateral vascular bundles is a diagnostic characteristic for -
- Poaceae
- Fabaceae
- Brassicaceae
- Cucurbitaceae
Barnase gene is driven by which of the following promoter?
- TA29
- MS29
- TA20
- MS20
Which one of the following is a source of resistance against leaf rust of wheat?
- Triticum monococcum
- Triticum turgidum
- Triticum timopheevi
- Both (1) and (2)
Alpha particles are composed of -
- Two electrons
- Two neutrons
- Two protons and two neutrons
- One proton and one neutron
In prokaryotes, the trp operon is primarily regulated through -
- repression of transcriptional initiation only
- attenuation only
- both repression and attenuation
- induction
The term ‘Nucleoplasm’ was firstly used by -
- Talbert (1968)
- Strasburger (1882)
- Dave (1955)
- Camillo Golgi (1822)
Vertifolia effect is associated with -
- Brinjal
- Soyabean
- Tomato
- Potato
Negative heterosis is desirable for -
- Yield increase
- Reproductive ability
- Earliness, height in cereals, micronaire value in cotton
- Resistance to insects and diseases
Aneuploidy refers to
- Polyploidy
- Structural rearrangement of chromosomes
- Loss or gain of one or a few chromosomes
- Loss or gain of one or more whole sets of chromosomes
The concept of Mega Gene Centre was proposed by -
- Zhukovsky
- N.I. Vavilov
- Harlan
- Zeven
The concept of Vertifolia Effect is given by -
- Flor
- Blakeslee
- Biffen
- J.E. Vanderplank
F2 ratio 1:4:6:4:1 of seed colour controlled by two genes with similar, small and additive effects, that proves -
- Multiple factor hypothesis
- Gene interaction
- Cytoplasmic inheritance
- Multiple allele hypothesis
Which of the following mutagens are known as frameshift mutagens?
- Alkylating agents
- Acridine dyes
- Gamma rays
- X-rays
Who produced the first artificial hybrid in plants?
- Thomas Fairchild
- Bateson
- Koelreuter
- Strasburger
The Dominance Hypothesis was first proposed by -
- Davenport
- East and Shull
- Jones
- Darwin
As per the notation of crosses by CIMMYT, Mexico which one is the double cross?
- A/B//C
- B/C//A
- A/B//C/D
- A/B
Geitonogamy is found in -
- Cotton
- Groundnut
- Rice
- Maize
Minimum isolation distance in foundation seed production of rice is -
- m
- m
- m
- m
Permanent hybrids in Oenothera is the result of -
- Balanced Lethal System
- Dominant Homozygous Genes
- Inversions
- Apomixis
Which phase of mitosis is characterized by the alignment of chromosomes at the cell equator?
- Metaphase
- Anaphase
- Prophase
- Telophase
% recombination frequency equals to how many centiMorgan (cM) units?
In Nagaharu triangle, which diploid Brassica species has the AA genome?
- B. campestris
- B. oleracea
- B. nigra
- B. carinata
Why is insect resistance in crops considered a relative property?
- Because resistance cannot be inherited
- Because it depends on the weather
- Because it is defined in comparison to more susceptible varieties
- Because all varieties are equally resistant
Osmotic concentration of cell sap and leaf exudate are associated with -
- Drought resistance
- Insect resistance
- Salinity resistance
- Frost resistance
In dicot plants, seeds are expected to show greater frequency of mutation, when they are produced on -
- secondary branch
- main shoot
- primary tillers
- primary branch
Which among the following physical mutagens is NOT an example of particulate radiation?
-
-rays
- Neutrons
-
-rays
-
-rays
Which one is NOT a quantitative trait?
- Days to maturity
- Seed coat colour
- Seed size
- Yield
If and , then the value of ‘k’ in partial diallel will be -
Gene-for-Gene hypothesis was proposed in the year -
Which scientist is credited with the concept of “gene-for-gene” relationship in plant-pathogen interactions?
- N.E. Borlaug
- N.I. Vavilov
- H.K. Hayes
- H.H. Flor
The enzyme used to join the DNA fragments are called -
- DNA gyrase
- DNA polymerase
- DNA ligases
- DNA nuclease
The National Bureau of Plant Genetic Resources (NBPGR) in India was established in-
Pairing between homologous chromosomes occurs during -
- Diplotene
- Pachytene
- Leptotene
- Zygotene
Backcross method is NOT used for -
- Production of inbred lines
- Recovery of transgressive segregants
- Transfer of cytoplasm
- Production of near isogenic lines
In mutagenesis studies, LD50 is defined as the dose of a mutagen that results in -
- lethality of exactly half of the treated population
- survival of only a few resistant individuals
- complete sterility of all treated individuals
- reduction in plant growth by 50% without affecting survival
Mutation breeding is more effective for -
- Cytoplasmic traits
- Polygenic traits
- Chromosomal rearrangements
- Oligogenic traits
pBR 322 and pBR 327 are -
- E. coli plasmid vectors
- Phasmid vectors
-
vectors
- Shuttle vectors
The development of the concept of centres of diversity is mainly credited to -
- M.S. Swaminathan
- N.I. Vavilov
- N.E. Borlaug
- Lysenko
A progeny obtained from a cross between two facultative apomicts is called -
- Cybrid
- Composite
- Hybrid
- Vybrid
The process of introducing recombinant DNA into a host cell is called -
- Translation
- Transformation
- Transcription
- Replication
If a fully tolerant variety is grown in the presence of severe intensity of disease, what does it give?
- Normal yield
- Lower yield
- No yield
- Double yield
Which estimates of heterosis is of commercial value?
- Heterobeltiosis
- Luxuriance
- Average heterosis
- Economic heterosis
Which type of tag colour is issued for breeder’s seed?
- White
- Golden yellow
- Green
- Azure blue
In the lac operon, which molecule acts as the inducer?
-
-galactosidase
- Lactase
- Allolactose
- Lactose directly
In mitochondrial inheritance, the phenotype of offspring is determined by -
- Nuclear genotype of the mother only
- Cytoplasmic genotype of both parents
- Cytoplasmic genotype of the mother
- Nuclear genotype of both parents
In Mirabilis jalapa, when a female plant with green leaves is crossed to variegated male plant, it will produce generation with -
- Green leaves
- Variegated leaves
- A plant with separate green and white leaves
- Albino plant
Which of the following is whole genome sequencing method?
- Clone-by-clone sequencing
- PCR
- Gel electrophoresis
- ELISA
Important germplasm collection of vegetables is maintained at -
- Varanasi
- New Delhi
- Indore
- Coimbatore
Which one of the following type of promoter is associated with housekeeping enzymes?
- Inducible promoters
- Regulatory promoters
- Structural promoters
- Constitutive promoters
The genetic code is termed “degenerate”, because
- codons overlap in reading frames.
- some codons have no function.
- multiple codons can specify the same amino acid.
- each codon codes for more than one amino acids.
Specific Combining Ability (SCA) is regarded as an indication of loci with -
- Dominance variance
- Epistasis
- Additive variance
- Recessive variance
Seed of which kind of variety is only multiplied by Seed Certification Agency?
- Pre-released variety
- Released variety
- Recommended variety
- Notified variety
Which of the following is correct about MAS?
- (I), (II), (IV)
- (I), (II), (III), (IV)
- (I), (II), (III)
- (II), (III), (IV)
The term “useful heterosis” was used by -
- Sprague (1946)
- Shull (1908)
- East (1909)
- Meredith and Bridge (1972)
Mass selection is useful for -
- Retaining considerable genetic variability
- Maintaining genetic purity of pure lines
- Handling of segregating population
- Avoiding or minimizing the inbreeding in cross pollinated crops
The International Centre for Genetic Engineering and Biotechnology (ICGEB) was established in New Delhi in the year -
Recombination between linked genes due to crossing over occurs during -
- Pachytene
- Diplotene
- Zygotene
- Leptotene
The first restriction endonuclease was -
- Bam-I
- Hind-II
- EcoK
- EcoB