HELLO STUDENTS: DAY- 12 Evening
1.IMPORTANT CORRECT SEQUENCES OF STRUCTURES AND STEPS IN BIOLOGICAL CONCEPTS :
*Choose the correct sequence in Ecological hierarchy :
Species (Individual organism)>Population>Community>Ecosystem>Landscape>Biome>Biosphere
*which is a correct general steps in patenting ?
Discovery/Invention>Primary appraisal>Filing patent in the office of Controller of Patents(Assessment and Licence negotiation>Further patenting abroad>Grant /refusal of patent >Enforcement of approved patent
*Which of the following is correct steps of dialysis ?
1)Blood is drained from convenient artery 2)Blood is mixed with heparin 3)Blood is passed through a coiled and porous cellophane tube bathing in dialysis fluid 4)Removal of nitrogenous wastes from blood 5)Blood is mixed with anti-heparin 6)Blood is passed into a vein.
*Which way of pollen to ovary is sequentially correct ?
Stigma>Style>Ovary
*The Harshey -Chase experiments show which of the following steps chronologically?
Infection>Blending >Centrifugation
*Mother and father of a person with 'O' blood group have 'A' and 'B' blood group respectively.What would be the genotype of both mother and father?
Both mother and father are heterozygous for 'A' and 'B' blood group , respectively .
*A nuceotide has the following components :
A nitrogenous base,phosphate group,a ribose sugar
*ELSI stands for :
Ethical,Legal and Social Issues
*Arrange the ascending order of extinction (reptiles) :
Pelycosaurs,Thecodonts,Therapsids,Dinosaurs
*Correct order is :
Palaeozoic>Mesozoic>Cenozoic
*In1953,S.L Miller created the primitive earth conditions in the laboratory and gave experimental evidence for the origin of first form of life from pre-existing non living organic molecules.The primitive earth conditions created include :
High temperature, volcanic storms, reducing atmosphere containing CH4,NH3,etc.
Mr.R.Soundarapandian, MSc, MEd, MPhil,
PG Asst Zoology
SIR MCTM Boys Higher Secondary School,
SIR MCTM Boys Higher Secondary School,
Purasawalkam Chennai-84.
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