December 1, 2014

IPE Exams - Senior Inter Botany Important Questions and Answers

As the questions in the academy textbook (2014 reprint) have been
revised, the students need to note that some of the questions have
been deleted while a few have been added. Some of the important
questions discussed here are according to the 2014 reprint textbook.

2 Marks Questions

Q: Define respiratory climacteric. Name the PGR associated with it.
A: A rise in the rate of respiration during fruit ripening is called
respiratory climacteric. Ethylene.

Q: Define the terms quiescence and dormancy.
A: When a seed is unable to germinate because of unfavourable external
conditions required for growth it is called quiescence. When a seed is
unable to germinate due to internal conditions like hard seed coats it
is called dormancy. (Though the external conditions are favourable).

Q: What is conjugation? Who discovered it and in which organism?
A: The direct transfer of DNA from donor cell to the recipient cell
through a conjugation tube between two live bacteria is called
conjugation. Lederberg and Tatum, Escherichia coli.

Q: What is transduction? Who discovered it and in which organism?
A: The transfer of genetic material from one bacterium to another
through bacteriophage is known as transduction. Lederberg and Zinder,
Salmonella typhimurium.

Q: What is the shape of T4 phage? What is its genetic material?
A: Tadpole shape. DNA (Deoxy Ribo Nucleic Acid)

Q: What is the shape of TMV? What is its genetic material?
A: Rod shape. RNA (Ribo Nucleic Acid)

Q: Explain the terms phenotype and genotype.
A: Phenotype: It is the physical or external appearance of a
character. Genotype: It is the genetic makeup of an individual.

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