2024
29-06-2024
Fish Genetics and Breeding- ICAR JRF/SRF 2024
Official solved question paper with verified bilingual step-by-step solutions and key concepts. आधिकारिक हल प्रश्न पत्र — विस्तृत द्विभाषी व्याख्या, प्रामाणिक उत्तर कुंजी एवं मुख्य अवधारणाओं सहित।
Questions in this Paper इस प्रश्न पत्र के प्रश्न
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Movement of DNA from one bacterium to another through a tubular bridge or pilus:
Which of the following is responsible for eliminating toxic oxygen by-products from cells?
form of multiple parasitism in which a parasite preferentially attacks a host that is already parasitized by another species is
known as
For mass multiplication of DD-136 nematode, the common host used is
Chlorpyriphos methyl is effective against stored product insects except
Which of the following insects often cause inhalational allergies in human following large emergence of adult insects
Given below are two statements
Statement (|); Climate is a weather condition related to smaller areas at a given place and at a given time.Statement (II) : Weather is a condition of atmosphere at a given place and at a given time
In light of the above statements, choose the most appropriate answer from the options given below.
The local name of cyclone in Philippines is
Which one of the following are secondary tillage implements?
(A) .Subsoiler
(B) .Cultivator
(C) .Disc harrow
(D) . Wetland plough
Choose the correct answer from the options given below:
is the most suitable, drought resistant and persistant grass?
The rainfed area in India is approximately
Which nutrient is often a limiting factor in agricultural production?
What is a potential disadvantage of agroforestry systems?
Pungency in mustard oil is due to
Sesamum belongs to the family
Dark period is critical in which type of plant?
Which of the following is NOT a significant contributor to greenhouse gas emissions from livestock farming?
Fe deficiency is mostly seen in crops growing on
EDV (Essentially Derived Varieties) are those which are derived from
What is the role of "companion planting" in agriculture?
The shortest phase of mitosis is
If 20% of heterozygous polydactyly (Pp) do not show polydactyly, the gene has a penetrance of
If 54 mutations are detected among 723 progeny of males that received 2500 roentgens and 78 mutation among 649
progeny of males that received 4000 roentgens, how many mutants would be expected to appear among 1000 progeny of
males that received 6000 roentgens.
Genetic interactions may also occur without epistasis if the end products of different pathways each contribute to same trait
This phenomenon is referred to as
In a population under Hardy-Weinberg equilibrium, what happens to the genotype frequencies over successive generations
in the absence of evolutionary forces?
A heritability value of 0.7 for height in humans indicates that:
In analysis of variance (ANOVA), what does a high F-statistic value indicate?
Which of the following is a strategy used to maintain genetic diversity in captive populations?
The Nagoya Protocol on Access to Genetic Resources and Equitable Sharing of Benefits, came into force in—
Cryopreservation of eggs and embryos of fish has been reported with less success. The main reasons are believed to be —
(A) . Large yolk sac
(B) . Large egg volume
(C) . Chorion
(D) . Chorionic membrane
Biological evolution by natural selection is when genes . individuals and populations
Asecond mutation at a different location in the genome , which compensates for the effect of the first mutation is
From the following list of tagging methods, which is incorrect for fish?
As per IUCN list of threatened species, Tor putitora, Tor malabaricus and Tor khudree are—
Genomic imprinting does not
Allozyme markers are less polymorphic because
Chitosan nanoparticles are not __
A Taqman probe is related to__
Mosaicism is a term used in
Which of these is not true for 16S metagenomic sequencing by NGS?
The plasma membrane is not
Which of these organelles are rich in hydrolytic enzymes?
BAC and YAC are.
The restriction enzyme that makes blunt cuts in DNA is
What is true for plasmid?
bacterium methylates its DNA to-
Which of the following is the DNA barcode region?
What does BLAST stand for ?
Which of the following is the primary focus of metagenomics ?
In FASTA format, the definition line must begin with
Interferons are cellular proteins produced mainly in response to
Name the process of mating of F1 hybrid to one of its parents
Who invented the process of producing monoclonal antibodies ?
Polymerase chain reaction technique was invented by —-
Which of the following is a Fish Cell Line ?
(A) . Necrophagous fish are carrion-eaters.
(B) . Polyphagy predominate in boreal and arctic zones
(C) . Ambush predators actively search and pursue the prey.
(D) . Temporal aphagy is typical in anadromous fish during spawning
Choose the correct answer from the options given below:
Do the hypercapnia-induced decrease of intra- and extra-cellular pH values compensate by the increase in one of the
following molecules/ions?
‘Which of the following functions is not performed by epithelial 2° circulation in fish?
Which of the following species naturally spawn in Spring and Autumn?
Which fish secrete thread-like substances from their kidney on which eggs remain attached?
Which of the following pituitary hormones regulates oocyte maturation in fish?
Which is not a characteristic of a demersal egg?
Starch and cellulose are examples of
Triglycerides consists of
The amino acid alanine is classified
Which of the following fatty acids is commonly found in fish oils and is known for its health benefits
Proline is an example for a
Transaldolase enzyme catalyses the transfer of
The pentose phosphate pathway meets the need of all organisms for a source of
The biosynthesis of glucose from non- carbohydrate sources is known as
An allele that is very common in a population is reffered to as
The square method in genetics to determine phenotypic or genotypic combinations in crosses is named after its inventor
called
is not involved in a DNA replication fork
Nullisomy is represented by
The genotype that produces a mirror scale phenotype in carps is,
On an average one centimorgans (cM) is equal to
Some genes that increase the mutation rate of another locus are referred to as
Q-banding (Quinacrine) used in the chromosomal banding technique is
The thickness of the chromatin filament is.
If the dominant alleles of both loci each produce the same phenotype without cumulative effect, the classical dihybrid ratio is modified as:
The dominance genetic variance can be estimated using which of the following methods?
Which of the following scenarios would most likely lead to a limit on selection?
Which of the following is NOT a genetic variance component in quantitative genetics?
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Heritability estimates provide a precise measure of the genetic contribution to individual traits.
Reason (R) : Heritability estimates remain constant across different environmental conditions.
In light of the above statements, choose the correct answer from the options given below.
If the inbreeding coefficient of an individual is 0.25, what is the probability that this individual carries two identical alleles by
descent at a specific locus?
How does migration between populations affect the Hardy-Weinberg equilibrium?
If the frequency of the dominant allele (p) in a population is 0.7, what is the frequency of the heterozygous genotype (Aa)
according to the Hardy-Weinberg equilibrium?
Which statistical analysis is commonly used to study the inheritance of quantitative traits?
Outlier loci are often associated with
In a population with two subpopulations, what effect would you expect on observed heterozygosity due to the Wahlund
effect?
The quantitative traits are influenced by
Find the odd match out
The distribution pattern of phenotypes for polygenic traits is
The value of inbreeding coefficient (F) in a fish population mainly depends on
In amass selection, the intensity of selection (i) = 2.5; standard deviation (0) = 60 and heritability is 0.1. The response of
selection (R) is.
EBV refers to.
The first selective breeding program in aquaculture in India was undertaken in.
The first reported selection experiments in aquaculture in 1920s were in
In selective breeding of ornamental fishes, focus is given primarily on
In many studies of natural hybridization, transmission of genes from one to another has been reported. This type of
transmission is known as.
Parentage analysis using co-dominant DNA markers is often undertaken to deduce pedigree information of offspring of
multiple families reared together. Here, the parentage assignment of pedigree works on the principle of -
The name for a chromosome map unit is
Recombination percentage in a diploid cannot exceed
Some QTLs/ genes linked to growth and disease resistance have been reported in which of the following Indian fish species
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Which of the following two hormones are essential for induced breeding of fishes?
High ____ increases the ability of a species to survive major changes in the environment.
Which of the following evolutionary models assigns different rates for transitions and transversions?
Maximum parsimony is a method used for
are the most polymorphic co-dominant markers.
ABLAST hit with E-value indicates a database match of good quality.
Ab initio structural predictions work on the principle that attractive interactions lead to energy of the molecule.
is untrue for Fluorescent In-Situ Hybridisation
An antibiotic selection marker commonly used for selecting transformed eukaryotic cell lines is
Institute Biosafety Committee regulates
ABGD stands for
Which of the following in not true 2
Complementary DNA (cDNA) is
A nanoparticle is highly cationic if its zeta potential is
Aclastogenic compound is one that
RCGM stands for
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