Thoroughly analyzing AP Inter 2nd Year Botany Model Papers and AP Inter 2nd Year Botany Question Paper March 2023 helps students identify their strengths and weaknesses.
AP Inter 2nd Year Botany Question Paper March 2023
Time : 3 Hours
Max. Marks: 60
Note: Read the following instructions carefully.
- Answer all the questions of Section – A. Answer ANY SIX questions Out of eight in Section – B and answer ANY TWO questions out of three in Section – C.
- In Section – A, questions from Sr. Nos. 1 to 10 are of ”Very short answer type”. Each question carries two marks. Ever,’ answer may be limited to 5 lines. Answer all these questions at one place in the same order.
- In Section – B, questions from Sr: No s. 11 to 18 are of “Short answer type”. Each question carries four marks. Every answer may be limited to 20 lines.
- In Section – C, questions from Sr. Nos. 19 to 21 are of Long answer type”. Each question carries eight marks. Every answer may be limited to 60 lines.
- Draw labelled diagrams, wherever necessary for questions in Sections – B and C.
Section – A
(10 x 2 = 20)
Note: Answer All the questions.
Each answer may be limited to 5 lines.
Question 1.
Explain the terms phenotype and genotype.
Question 2.
Give two examples of fungi used in SCP production.
Question 3.
Does transpiration occur at night? Give an example.
Question 4.
Distinguish between action spectrum and absorption spectrum.
Question 5.
What is conjugation? Who discovered it and in which organism?
Question 6.
What are the components of a transcription unit?
Question 7.
What is meant by capping and tailing?
Question 8.
What is full form of PCR? How is it useful in biotechnology?
Question 9.
Give different types of czy genes and pests, which are controlled by the protein encoded by these genes.
Question 10.
Name a microbe used for statin production. How do statin lower blood cholesterol level.
Section – B
(6 × 4 = 24)
Note: Answer any SIX questions.
Each answer may be limited to 20 lines.
Question 11.
Write the important features of Genetic code.
Question 12.
Write briefly about enzyme inhibitors.
Question 13.
Mention the advantages of selecting pea plant for experiment by Mendel.
Question 14.
List out the beneficial aspects of transgenic plants.
Question 15.
Explain the steps involved in the formation of root nodule.
Question 16.
What is meant by plasmolysis? How is it practically useful to us?
Question 17.
Which one of the plant growth regulators would you use if you are asked to
a) Induce rooting in a twig.
b) Quickly ripen a fruit
c) Delay of leaf senescence.
d) Induce growth in axillary buds.
e) Bolt’ a rosette plant.
f) Induce immediate stomatal closure in leaves.
g) Overcome apical dominance.
h) Kill dicotyledonous weeds.
Question 18.
What is ICTV? How are viruses named?
Section – C
(2 x 8 = 16)
Note: Answer any Two questions.
Each answer may be limited to 60 lines.
Question 19.
Describe the tissue culture technique and what are the advantages of tissue culture over conventional methods of plant breeding in crop improvement programmes?
Question 20.
Explain the reactions of Krebs cycle.
Question 21.
Give a brief account of the tools of recombinant DNA Technology.