Ø  One gene one enzyme hypothesis was proposed by beadle and Tatum.

Ø  One gene one enzymes hypothesis by beadle and Tatum.

Ø  Operon hypothesis was given by Jacob and Monad.

Ø  Origin of groundnut is — Brazil.

Ø  Origin of maize is — Southern Mexico.

Ø  Origin of rice is India or Africa.

Ø  Origin of sorghum is — Africa.

Ø  Origin of species was published in 1859 by Charles Darwin.

Ø  Pairing of chromosomes occurs in zygotene stage.

Ø  Paleopolyploidy is observed in brassica.

Ø  PAR range from 400-700.

Ø  Paramutations are due to? Heterochromatization or Metylation of DNA.

Ø   Parthenogenisis is development of embryo from egg cell without fertilization.

Ø  Partial diallel formula- ns/2.

Ø  Partially homologous chromosomes are called as? Homeologous.

Ø  PBW343 is a popular wheat variety.

Ø  PCR – RFLP method is known as CAPS method.

Ø  PCR used in SNP analysis is nested PCR.

Ø  PCR was given by kary mullis.

Ø  Pedigree and backcross need space planting whereas bulk method doesn’t need space planting and can be grown in small area.

Ø  Pedigree method is designated for transgressive breeding and was given by love.

Ø  Pedigree, bulk and single seed descent and backcross methods are used for handling segregating generations in self pollinated crops.

Ø  Preformation theory was proposed by Swammerdam and Bonett.

Ø  Permanent fixation of Heterosis can be done by? Apomixes, Vegetative reproduction and Balanced lethal system

Ø  Peroxisome is a Single membrane organelle membrane organelle?

Ø  Peroxisomes is the site of glycolate metabolism.

Ø  Phenotype of an individual is affected by both genotype and environment

Ø  Phenotypic ratio of Di-cross hybrid? 9:3:3:1

Ø  Phenotypic ratio of Monocross hybrid? 3:1

Ø  Phenotypically males but are females is the characteristic feature of? Klinfelter’ syndrome

Ø  Phenyketonouria is a heredity disease.

Ø  Phospaharamdites are used in chemical synthesis of DNA, RNA and other nucleic acids

Ø  Phosphamarides are used in synthetic biology for oligonucleotide synthesis

Ø  Photo system II is absent in? C4 plants.

Ø  Photosynthesis inhibitor is? DCMU.

Ø  Photosynthesis is an anabolic process during which plants use energy from sunlight to convert carbon dioxide gas and water into sugar molecules.

Ø  Photosynthesis is an process? Oxidation-Reduction

Ø  Physical basis of life by Huxely is? Protoplasm

Ø  Pineapple is a CAM plant.

Ø  Plant breeding is considered as current phase of evolution (Simmonds, 1979)

Ø  Plant DNA fingerprinting can be most effectively used through SSR markers.

Ø  Plant floral display certain traits so that ensure/attract/encourage pollination.

Ø  Plant hormones that regulate plant growth, particularly by stimulating cell Elongation? Auxin

Ø  Plant part used for micro-propagation? Explant

Ø  Plant show wilting and recover after supply? Permanent wilting

Ø  Plant tissue culture techniques are performed in? Laminar Air Flow Chamber

Ø  Plant tissue culture was begun by? G Haberlandt (German botanist) in 1808

Ø  Plant wilt in mid-day and recover in night? Temporary wilting

Ø  Plants optimize reproductive success through interaction between these components of reproductive system and ecological factors.

Ø  Plants produce seeds that germinate before they detach from the parent are? Viviparous plants

Ø  Plants that have been genetically produced using recombinant DNA techniques is called? Transgenic plants

Ø  Plants that owe their resistance by avoidance are called as? Water savers

Ø  Plastids was introduced by? Lederberg

Ø  Pollen from a flower of one plant falls on the stigmas of other flowers of the same plant? Geitonogamy

Ø  Pollinated species is grown without selections? Bulk

Ø  Polygenic characters in the germplasm are measured by different methods such as simple measures of dispersion (Range, SD, SE and coefficient of variation), Meteroglyph analysis and D2 statistics.

Ø  Polygenic characters show variable magnitude of heritability and environment plays and important role in their development.