8/17/2019 159Sinior Botony
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GUESS PAPER
Marks:60
I. Answer the following questions. 10x2=20 M
1) Compare ibibing capacities of pea and Wheat Seeds.
2) Distinguish between apoenzyme and cofactor.
3) What is meant by bolting? Which hormone causes bolting?
4) What are pleomorphic bacteria? Give an exaple.
5) Explain the terms Phenotype and genotype.
6) What is meant by capping and tailing?
7) The proportion of nucleotides in a given nucleic acid are:
Adenine 18%, Guanine 30%, Cytosine 42%,
and Uracil 10%. Name the nucleic acid and mention the number of
strands in it.8) What are molecular scissors? Where are they
obtained from?
9) What are fermentors?
10) Name any two genetically modified crops?
II. Answer any six questions. 6x4=24 M
11) ‘Transpiration is necessary evil’- Explain.
12) Explain the steps involved in the foramtion of root
nodule.
13) Describe C4 path way.
14) Write a note on agricultural/horticultural applications of
auxins.
15) Explain the structure of TMV.16) Explain the codominance
with example.
17) What are the differences between DNA and RNA.
18) Give a brief account of pest resistant plants.
III. Answer any two questions. 2x8=16 M
19) Explain the reactions of Krebs Cycle.
20) Explain briefly the various processes of recombinant DNA
technology.
21) You are a botanist working in the area of plant breeding.
Describe the various steps that you will under
take to release a new gvariety.
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Subject-Senior Botony
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