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Question : A: In electrostatic precipitor.s electric charge is generated on the particles in the smoke and they are down towards electrodes and removed. R : About 100% particles present in smoke are removed by electrostatic precipitors.

Question : A : Improvtedreproduction related programmes are called RCH. R : Government and non governmental organization spread reproductive awareness through medium of audio-visual and newspapers.

Question : [A]: If a population is of dominant genotype AA, then the frequency of dominant alleles in the gene pool will be relatively higher. [R]: The percentage of gametes bearin~ re- cessive (aa) allele will be correspondingly low

Question : (a) Identify the selectable markersin the diagram of E. Coli vectior shown above . ( b) How is the coding squence of alpha- galactosidase consider a better markers than the ones identified by you in the diagram ? Explain.

Question : a. Identify the personalities shown above. b. Briefly give about their contributions to evolution.

Question : A hypothetical series of 20 multiple alleles is known for a certain locus. How many phenotypic classes are possible?

Question :A hybrid where the cytoplasm of two parental cells are fused by retaining only one parental nucleus is called

Question : A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is called

Question : A human protein which is being obtained from transgenic animals and is used to treat emphysema is

Question :A human ovum is released on the 14th day of menstrual cycle. a. What happens to the ovum if it is fertilised by a sperm? b. Where does the fertilisation occur? c. What will happen to the Graafian follicles if the ovum is fertilised?

Question : A human male produces sperms with the genotypes AB, Ab, aB and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this perons?

Question : A human male is heterozygous for two autosomal genes A & B and homozygous dominant for 3^(rd) autosomal gene C. The individual is having sry gene (S) on its Y– chromosome. What will be the probability of sperms to carry abcS condition?

Question : A human female with Turner's syndrome

Question : A human female with Tunner,s syndrome :-

Question : A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.

Question : A human being suffering from Down syndrome shows trisomy of 21st chromosome. Mention the cause of this chromosomal abnormality.

Question : A hrmful condition which is also pitential saviour form a mosquito borne infectious disease

Question : (a) How many spermatozoa are formed from one secondary spermatocyte? (b) Where does the first cleavage division of zygote take place?

Question : a) How has the development of bioreactor helped in biotechnology? b) Name the most commonly used bioreactor and describe its working.

Question : (a) How has the development of bioreactor helped in biotechnology? (b) Name the most commonly used bioreactor and describe its working

Question :(a) How does a chromosomal disorder differ from a Mendelian disorder? (b ) Name any two chromosomal aberration associated disorders. (c) List the characteristics of the disorders mentioned above that help in their diagnosis.

Question : (a) How did Griffith explain the transformation of R strain (no virulent) bacteria into S strain (virulent)? (b) Explain how MacLeod, Mc Carty and Avery determined the biochemical nature of the molecule responsible for transforming R strain bacteria into S strain bacteria.

Question : A horse has a karyotype 64 chromosomes and a donkey har a karyotype of 62 chromosomes. The hybrid offspring of a horse-donkey cross is a mule, which has a 63 chromosomes. A mule is sterile because it cannot successfully

Question : A hormone that induces fruit ripening is

Question : (a) Hooks and suckers are present (b) Absorb nutrients from the host directly through their body surface (c) Specialised cells called flame cells help in excretion and osmoregulation (d) Sexes are separate Which of the above given charater is not related with diagram given below?

Question : A homozygous tall pea plant is crossed with its homozygous recessive parent. Find out the genotypic and phenotypic ratio with the help of Punnet square method.

Question :A homozygous sweet pea plant with blue flowers (RR) and long pollen (R_0R_0)is crossed with a homozygous plant having red flowers (rr) and round pollen (r_0r_0) . The resultant F_1hybrid is test crossed. Which of the following genotype does not appear in its progeny?

Question : A homozygous recessive with cd genes was crossed with dominant (+ +). If their hybrid is test crossed and the following result was obtained + + - 900 cd - 880 + d - 115 + c - 105 than what will be the distance between genes c and d.

Question :A homozygous pea plant bearing axial flowers crossed with another pea plant terminal flower. Workout a cross to verify the genotype of F_(1)hybrid. What is yourconclusion?

Question : [A]: Homologous organs have similar struc- ture but different functions.[R]: It is believed that homologous structures were created for different purposes and their present function is secondarily achieved out of necessity

Question : [A]: Homology is the similarity between or- gans of same animal based on common ancestory.[R]: Analogy is seen in every organ system from fish to man

Question : [A]: Homologous organs are similar in basic structure and embryonic origin, but serve dif- ferent functions.[R]: Similarity in basic structure points to common ancestry whereas diversity in func- tion reflects adaptation to different modes of life.

Question : (a) Hiv and Hepatitis-B are STDs. Mention the two other ways by which they can be transmitted to a healthy person. (b) Why is early deterction of SRD essential ? Wha can it lead to otherwise ? Explain.

Question :A hog breeder would use a backcross to

Question : [A]: Hill and Bendall proposed Z-scheme and suggested that photosystems operate in series.[R]: The light-dependent reactions require the participation of two light gathering units called PS-I and PS-I I.

Question : A higher plant-cell, impregnated with cutin and suberin is placed in water, what would happen after 15 minutes?

Question : A high does of UT-B radiation causes inflammation of cornea called _______ cataract.

Question : A high density ofelephant population in an area can result in

Question : A high density of tiger popdlation in an area un result in

Question : A high density of elephant population in an area can result in

Question : A : High concentration of atmospheric SO_(2) reduces primary productivity. R : SO_(2) converts the chlorophyll a into phaeophytin.

Question : A high density of elephant population in an area can result in :

Question : A heterozygous pea plant producing intermediate strach grain size is selfed. What number of progeny will produce large strach grain size out of 4000 pea plants obtained ?

Question : [A]: Heterosis is superiority of F_1hybrid over its two genetically dissimilar parents. [R]: Heterosis can be measured in terms of size, yield and growth rate

Question : [A]: Hershey and Chase experiment showed that protein is the genetic material of T_2bac- teriophage. [R]: According to Hershey and Chase, RNA is the genetic material in T_2 bacteriophage.

Question : [A]: Heritable changes are also called muta- tions.[R]: Mutations are sudden change in chromo- somal DNA.

Question : A heavy metal pollutant released in automobile exhaust is __________.

Question : A heavy DNA (N^(15)N^(15)) of Egtcoli si allowed to replicated in N^(14) medium for 80 minutes. What would be the proportions of light (N^(14)-N^(14)) and hybrid densities of DNA (N^(14)-N^(15)) molecules?