0% 10 Plant Breeding & Genetics Quiz 3 1 / 50 In populations genotypic and phenotypic ratios are identical in cases of___________________? Mendelian dihybrid Incomplete dominance Mendel lan monohybrid None of the above 2 / 50 In barley, resistance to cereal leaf beetle is associated with_________________? High silica content High aspartic acid High benzol alcohol Waxiness of leaves 3 / 50 An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________? Allopolyploid Hypoploid Hyperploid Autopolyploid 4 / 50 Polytene chromosomes were first observed by___________________? Allard (1910) Baranetzky (1910) Balbiani (1881) Mendel (1810) 5 / 50 Evolution may be described as___________________? Inheritance of acquired characters History of development of larger biological units Cntinuous genetic variation Discontinuous genetic variation 6 / 50 The enzymes and pigments associated with photosynthesis are located in ___________________? Chloroplast Leucoplast Protoplast Plastid 7 / 50 Common and easily available source of energy does not contain RNA__________________? DNA/RNA RNA DNA ATP 8 / 50 Ribosomes are important because they help in __________________? Protein synthesis Growl Respiration Movement 9 / 50 Norine 10 is the source of dwarfing gene in________________? Wheat Barley Rice Oat 10 / 50 Which are the necessary conditions for the hardy Weinberg principle for applying to genetic population________________? No migration and large population Low mutation population Selective mating and small population High mutation ratio and small population 11 / 50 Germplasm collected within the country is known as____________________? Exotic collection Active collection Working collection Indigenous collection 12 / 50 Heterosis can be fully exploited in the form of_____________________? Hybrids Multi lines Composites Synthetics 13 / 50 The concept of disruptive was given by____________________? Morgan None of the above Shull and East Mather 14 / 50 In line x tester cross each male is crossed with____________________? Same sets of females Few females in a set All the above Different sets of females 15 / 50 Where would you look for active cell division in a plant _____________________? Tips of stem & roots Internodes regions Cortex cells Pith cells 16 / 50 The policy level of commercially cultivated seedless watermelon is__________________? Diploid Monoploid Tetraploid Triploid 17 / 50 Male sterility in flowering plant was first reported by___________________? Koelreuter (1763) Stout (1917) Brewbaker (1810) Gerstel (1900) 18 / 50 The process of producing several indentical copies of a gene sequence referred to as__________________? Gene splicing Gene cloning Gene sequencing Micro cloning 19 / 50 In primary trisomic the extra chromosome is__________________? None of the above Normal chromosome Traits located chromosome Isochromosome 20 / 50 Self incompatibility in which the genes express in the style is known as__________________? Ovarian SL Diallelic SL Polyallelic SL Styler SL 21 / 50 Who arrang the following associated with genetic engineering___________________? Koruna Crick Morgan Watson 22 / 50 In Incern, resistance to spotted aphid is associated with__________________? High DIMBOA in leaves low sinigen in leaves High silicant content High saponin in leaves 23 / 50 Who discovered nucleic acid________________? Miescher Benda Van Mohl Schultz 24 / 50 A dihybrid ratio is____________________? 3:01 1:1:1:1 27:9:9:3:3:3:1 9:3:3:1 25 / 50 Mutation was first discovered by________________? Morgan (1910) Stadler (1928) Wright (1791) deVries (1900) 26 / 50 The carrier of genetic information is __________________? Ribosome Nucleic acid Protein Carbohydrates 27 / 50 Protein content in barely is higher than____________________? None of the above rice wheat maize 28 / 50 The smallest cell organelle so far is_____________________? Ribosome Peroxisome Spherosome Lysosome 29 / 50 Prepotency increase with increase in_______________? Homozygosity Hetrozygosity Homogeneity All the above 30 / 50 The term useful heterosis was first used by__________________? Richey (1914) Meredith and Bridge (1972) Hull (1950) Jenkins (1935) 31 / 50 Who gave the model of DNA_________________? Tatum Koran Dtanele Watson and Crick 32 / 50 The chromosome number of human race is__________________? 41 48 46 44 33 / 50 Red (RR) is crossed with white (ww). All the (Rw) offsprings are pink this is an indication that the R gene is_________________? Mutant Dominant Incomplete dominant Recessive 34 / 50 Who discovered mitochondria__________________? Palade Garner Cowdry Altmann 35 / 50 The significance of difference among several means is tested with the help of____________________? x-test t-test Z-test F-test 36 / 50 Out breeding leads to reproduction in____________________? None of the above Heterozygosity Homozygosity Population mean 37 / 50 When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be________________? 9:07 9:3:3:1 9:9:9:3:3:3:1 1:4:6:4:1 38 / 50 Ribosome?s are the centers of_____________________? Anaerobic respiration Starch synthesis Fat synthesis Protein synthesis 39 / 50 A mutant organism (bacterium) that will not grow on a minimal medium does so on the addition of some grown factor is known as __________________? Axenema Autotrophy Heterotroph Auxotroph 40 / 50 Chemically DNA differs from RNA by __________________? Ribose and thymine in DNA and deoxyribose and uracil in RNA Thymine present in DNA and Uralic in RNA Deoxyribose in DNA and ribose in RNA Deoxyribose and thymine is present in DNA and ribose and Ural in RNA 41 / 50 DNA is genetic material was first discovered by____________________? Avery et al (1944) Sressler (1968) Attmann (1889) Crick (1953) 42 / 50 Self incompatibility which is controlled by two genes is found in___________________? None of the above Cruciferae Solanaceae Gramineae 43 / 50 Allogamy is the common form of________________________? Out breeding Syn breeding Inbreeding All the above 44 / 50 Which one of the following does not contain RNA_______________? Ribosomes Chromosome Nuclcolus Plasmalemma 45 / 50 A child is born with an extra chromosome in each of it cells, the reason is___________________? Crossing over Hybridization Non-disjunction Segregation 46 / 50 Name chromosome was coined by ___________________? Aluman Van Beneden Walleye T. Boveri 47 / 50 Single seed descent method was first suggested by_________________? Simmonds (1979) Goulden (1939) Giber (1953) Brim (1966) 48 / 50 Global gene bank of sorghum is located at_______________________? ICRISAT None of the above ICARDA CIP Peru 49 / 50 Allogamy is promoted by____________________? Herkogamy Male sterility Dichiny All the above 50 / 50 How many mitouc divisions will take place to produce 512 cells from a single parent cell_________________? 256 158 9 511 Provide Your Information Your score is The average score is 49% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevPlant Breeding & Genetics Quiz 2 Plant Breeding & Genetics Quiz 4Next
