List of top Social Science Questions

Given below are two statements, one is labeled as Assertion (A), and the other one is labeled as Reason (R).
Assertion (A): The seeds obtained from a hybrid can not be used for raising the next crop, and need to produce fresh hybrid seeds for sowing in the next season.
Reason (R): Selfing, segregation, and inbreeding decrease heterosis in the seeds of hybrid crops.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): In usual terms, recombination frequency between any pair of genes does not exceed 50%.
Statement (II): In a situation of 4-strands double cross-over, recombination frequency becomes 100%.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): An epigenetic change is an alteration in gene expression associated with alternative chromatin or methylation state without any change in the DNA sequence.
Statement (II): The alternative epigenetic states are not heritable either through mitosis or meiosis.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): Reciprocal recurrent selection (RRS) simultaneously improves two different populations in their ability to combine well with each other.
Statement (II): RRS is, however, inferior to the Recurrent Selection for GCA and Recurrent Selection for SCA when dominance is either complete or incomplete.
In light of the above statements, choose the most appropriate answer from the options given below:

Who is considered as Father of Plant Pathology?

Which of the following bacterial pathogen is believed to have originated in Andes region in South America, and spread to other continents

Marker-assisted backcross breeding (MABB) is a systematic approach to transferring a gene from a donor genotype to a recipient variety of crops. Arrange the activities serially i.e. performed first to the last:
(A). Production of \( F_1 \) hybrids through hybridization between the donor and the recipient genotypes
(B). Foreground and background selection and backcrossing (or selfing)
(C). Hybridity testing and backcrossing with the recipient variety
(D). Selection of donor and the recipient variety based on target gene
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): Mutation is an important source of genetic variations existing in any organism.
Statement (II): The rate of mutations, however, is the same in both spontaneous and induced mutations.
In light of the above statements, choose the most appropriate answer from the options given below:

During the expression of a gene in a eukaryotic organism, a series of events happen one after another. Arrange the following steps of gene expression in eukaryotes chronologically i.e. from the first to the last-
(A). Movement of the matured mRNA from the nucleus to the cytoplasm
(B). Formation of transcript (pre-mRNA) in the nucleus
(C). Removal of the introns, joining the exons, and addition of 5'cap and poly-A tail to the pre-mRNA
(D). Attachment of the mRNA with the Ribosome for translation in the cytoplasm
Choose the correct answer from the options given below:

The development of a synthetic variety in a cross-pollinated crop involves several activities that are performed serially one after another. Arrange the steps in chronological order i.e. from the beginning to the end:
(A). Production of the synthetic variety
(B). Collection of inbreds and testers (OPVs)
(C). Top cross or poly-cross test for GCA and selection of inbreds as parental lines
(D). Multilocation testing of the synthetic variety and distribution
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): In a standard PCR amplification with a co-dominant marker, a pair of primers (Forward and Reverse) is used.
Statement (II): In a standard PCR, only the segment of DNA whose 3'-ends are complementary to the two primers used only gets amplified.
In light of the above statements, choose the most appropriate answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{28.png Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{26.png Choose the correct answer from the options given below:

Breeding a crop variety involves several activities. Arrange the steps of a plant breeding program in correct chronological order-
(A). Selection of superior recombinants
(B). Collection, evaluation, and selection of diverse genotypes for hybridization
(C). Hybridization among selected parental genotypes
(D). Multilocational testing and release of a variety for commercial release
Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{27.png Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{29.png Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{30.png Choose the correct answer from the options given below:

The activities happening during RNA editing are:
(A). A change in RNA base sequence after transcription
(B). Usual addition or occasional deletion of 'U' residues
(C). Occasional addition of 'C' residues
(D). Proceeding with the editing in the 5'-3' direction of mRNA
Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{25.png Choose the correct answer from the options given below:

The main similarities between the synthetics and composite varieties of crops are:
(A). Both are relevant to allogamous species
(B). Both can be reconstituted exactly and easily
(C). Both have a broad genetic base
(D). Both are mixtures of several homozygotes and heterozygotes
Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{23.png Choose the correct answer from the options given below:

Match List-I with List-II:
\includegraphics[width=0.6\linewidth]{24.png Choose the correct answer from the options given below:

The 'One gene-one enzyme' hypothesis was challenged by several researchers for its validity. The reasons are-
(A). Many enzymes are composed of more than one polypeptide encoded by different genes.
(B). Product of many genes are not enzymes
(C). Genes contain introns, which do not codes for any amino acids
(D). Several related polypeptides can be obtained from a single gene through alternate splicing
Choose the correct answer from the options given below:

Which of the following describes a 'gene' correctly?
(A). Genes are located on chromosome
(B). Gene is a discrete particle
(C). Recombination can happen within a gene
(D). One gene can encode more than one polypeptide
Choose the correct answer from the options given below:

Geographical Indication (GI) includes which of the following items?
(A). Goods of handicraft
(B). Natural products
(C). Old archaeological structures
(D). Agricultural produce
Choose the correct answer from the options given below: