- Less than 30 = t test.
Ø Linkage is detected by? Test cross.
Ø L 111A and 732 A cytoplasm resistant to downy mildew in cumbu.
Ø Lampbrush chromosomes was discovered by — Flemming (1882).
Ø Law of inheritance was proposed by Gregor J. Mendel.
Ø locus is referred to Dominant and recessive epistasis.
Ø LOJAP genes (green and white strips) leaf colour is controlled by chloroplast gene.
Ø Loss of a portion of segment from a chromosome is referred to — Deletion / Deficiency.
Ø Lowest 2n = 4 in Haplopappus gracilis of Compositae.
Ø Linkage is related to T.H Morgan.
Ø Linkage of dominant genes hypothesis was given by? Jones.
Ø Liquid Nitrogen (-196 C) is useful in Cryopreservation.
Ø Local control is also known as error control.
Ø LOD is Logarithm of odds.
Ø Long term storage of storage of seeds - 6-8% of moisture.
Ø Longest chromosome is seen in? Trillium sp.
Ø Loss of a genotype due to its failure to reach an optimum phenotype due to GxE interacation is called as? Genetic slippage.
Ø Lowest number of chromosomes in plant is seen in? Haplopappus gracilis.
Ø LSD is used when fertility moves in two directions.
Ø LXT is given by kempthrone in 1957.
Ø Lysimeter is study of salt tolerance.
Ø Main architects of golden rice are Ingo potrykus and Peter bayer.
Ø Main constituent of middle lamella is calcium.
Ø Majority of mutations are? Harmful in nature.
Ø Male sterility in maize is developed because plants have to allocate large amount of resources to male and female inflorescence. Plant has to allocate more resources for pollen parent before pollination and after pollination allocation of resource is for seed parent. Among large gametes fittest pollen grains are achieved for reproductive success. 1 in 10,000 pollens are successful to avoid this wastage of resources during allocation CMS lines were developed.
Ø Male sterility is transferred by? Backcross method.
Ø Male sterility leads to heterozygosity in species as it promotes outbreeding and reduces homozygosity.
Ø Male sterility used in pearl millet is CGMS method.
Ø Mango and Jackfruits have recalcitrant seeds
Ø Mapmaker is used for statistical analysis for QTL loci in gene mapping.
Ø Marker protein for mitochondria is? Cytochrome-C.
Ø Markers for high throughput phenotyping is SNP.
Ø Mass pedigree method of breeding particularly useful for the improvement of self pollinated crops.
Ø Mass Pedigree Method was proposed by? J.B. Harrington in 1937.
Ø One variance test F test.
Ø Onion & garlic are examples of? Bulb.
Ø Only one large chloroplast is seen in the cells of? Chlamydomonas.
Ø Operon hypothesis was proposed by Jacob and Monad in Ecoli.
Ø Operon model of gene regulation was discovered by? Jacob and Monad 1961
Ø Opque 2 is transcriptive factor gene in maize.
Ø Organism used in genetics are bacteria – E coli, Fungi-Neurospora crassa, Insect- drosophila melangoster, plant- maize, pea.
Ø Origin of maize is in southern Mexico and central America.
Ø Oil content in groundnut — 45 to 50%.
Ø Oil content in soybean — 20%.
Ø Oil content of castor seed-50%.
Ø Oil content of cotton seed is — 20%.
Ø Oil content of Sunflower— 40-50 %.
Ø Old world cotton is also called as — Desi cotton or diploid cotton.
Ø Polymerase chain reaction (PCR) was developed by? Dr Karl Mullis (1980)
Ø Population produced by mass selection has heterogeneity and relatively wider adaptation.
Ø Parbhani Kranti is a variety of Bhendi.
Ø Partitioning of genetic variance into additive and non-additive components was suggested by sewall wright
Ø Partitioning of phenotypic variance into heritable fixable, heritable non fixable was suggested by K Mather.
Ø PGMS: Photosensitive Genetic Male/Sterility
Ø Photomicrographs of the chromosome of a single somatic metaphase cell are clipped out and arranged in homologous pairs according to their size known as —Karyogram
Ø PIRRCOM means: Project of Intensification of Regional Research on Cotton, Oilseeds and Millets
Ø Pokyness in Neurospora.
Ø Pollen from an anther may fall on to the stigma of the same flower is called as — Self- pollination or Autogamy.
Ø Polygenes term was given by Mathers
Ø Polymeric gene interaction in which two dominant alleles have similar effects when they are separate but produce enhanced effect when come together 9:6:1 ratio in F2
Ø Polytene chromosomes is also called as giant chromosomes / Salivary gland chromosomes
Ø Polytene chromosomes was first reported by — Balbiani in 1881.
Ø Portion of genetic variance which arises due to deviation as a consequence of interalleleic interaction is called epistatic variance (additive x additive, additive x dominance, dominance x dominance).
Ø Portion of genetic variance which arises due to deviation from additive scheme of gene action resulting from intra allelic interaction. It is due to the deviation of heterozygote from average of two homozygotes.
Ø Portion of genetic variance which is produced by the average effects of gene at all segregating loci is additive variance.
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