Genetics And Plant Breeding Objective Questions pdf

Quiz 5

41)The generation of nuclear mRNA from precursor RNA requires the activity of­
(A) Spliceosomes
(B) Endonuclease
(C) Exonuclease
(D) Supersolenoid
Correct Answer :­Spliceosomes 

42) Plasmids which may integrate into the bacterial chromosomes are called­
(A) Conjugative Plasmids
(B) R­Plasmids
(C) Episomes
(D) F­Plasmids
Correct Answer :­Episomes 

43) Heritable change in gene expression that does not involve change in underlying
DNA is termed as­
(A) Eugenics
(B) Epigenetics
(C) Phytogenetic
(D) Genetic Engineering
Correct Answer :­Epigenetics 

44) In Sickle­cell syndrome, the amino acid substituted is.
(A) Glutamic acid by valine in  ­chain
(B) Valine by glutamic acid in  ­chain
(C) Glutamic acid by valine in  ­chain
(D) None of the above
Correct Answer :­Glutamic acid by valine in  ­chain

45) Which of the following is a recessive trait in garden pea.
(A) Round Seeds
(B) Tall sterm
(C) Wrinkled Seeds
(D) Coloured Seed Coat
Correct Answer :­Wrinkled Seeds 

46) Which country was first to begin commercial use of transgenic tomato & tobacco?
(A) India
(B) America
(C) China
(D) Canada
Correct Answer :­China 

47) In India Inter­ministerial committee to decide commercial use of GMO5 is ­
(A) GEAC
(B) DBT
(C) DST
(D) EPA
Correct Answer :­GEAC 

48) The first genome sequenced was ?
(A) Haenophilus influence
(B) E. coli
(C) Tobacco
(D) None
Correct Answer :­Haenophilus influence 

49) The genetic exchange between different evolutionary linkages is referred to as:­
(A) Horizontal gene transfer
(B) Lateral gene transfer
(C) Horizontal gene transfer and Lateral gene transfer both 
(D) None of above
Correct Answer :­Horizontal gene transfer and Lateral gene transfer both  

50) Most comprehensive database for SNP5 is:­
(A) EMBL
(B) SWISS PROT
(C) HGBASE 
(D) Mito

Correct Answer :­HGBASE 

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Plant Pathologists are scientists concerned with the understanding of the
Genetics And Plant Breeding Objective Questions pdf
dynamic processes involved in the plant health. Plant Pathology is defined as the study of the organisms and environmental conditions that cause disease in plants, the mechanisms by which this occurs, the interactions between these causal agents and the plant (effects on plant growth, yield and quality), and the methods of managing or controlling plant disease. Plant breeding has been practiced for thousands of years, since near the beginning of human civilization. It is practiced worldwide by individuals such as gardeners and farmers, or by professional plant breeders employed by organizations such as government institutions, universities, crop-specific industry associations or research centers.
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