Here, we have formulated all the questions from the 2020 PhD Botany entrance exam in the form of a quiz, to help all those who will be appearing in this exam in the coming years.

The quiz is available in two parts, each comprising 50 questions. The part-1 is given below.

To solve the other parts click on the links given below- Botany Part-2

Part-1

21.

The apoptosome complex is constructed from :

Apaf-1, cytochrome C, ATP and procaspase

FasL , cytochrome C and Apaf-1

FasL,CD95 and FADD

Cytochrome C, Apaf-1 and procaspase-8

22.

Lipid bilayers of cell membranes in chill-resistant species have :

Higher proportion of saturated fatty acids

Higher proportion of unsaturated fatty acids

Only saturated fatty acid

Equal proportion of saturated and unsaturated fatty acid

23.

Which of the following symbiotic association is not useful as biofertilizer?

Rhizobium and leguminoun root

Algae and fungi

Azolla and Anabaena

Roots of higher plants and fungi

24.

In Marchantia, the archegonia are surrounded by a common involucre called :

Operculum

Perichaetium

Perigonium

Peritonium

25.

Choose the correct combination :

Somaclonal variation- Larkin and Scowcroft

Somaclonal variation- Gottlieb Haberlandt

Somaclonal variation- Miller and Skoog

Somaclonal variation- Steward

26.

In Gymnosperms, endosperm is :

Haploid

Diploid

Triploid

Tetraploid

27.

Caspases are involved in which of the following :

Atrophy

Necrosis

Apoptosis

Accidental cell death

28.

In vernalization, the cold stimulus is perceived by :

Lateral meristems

Intercalary meristems

Apical meristems

All of the above

29.

Symbiotic nitrogen fixation occurs in nonleguminous Alder tree by :

Rhizobium

Frankia

Pseudomonas

Nitrosomonas

30.

RNA viruses have genome that consists of RNA. What must a positive strand RNA virus do before it can replicate ?

Nothing, it is ready to start translating protein

It must make a positive strand RNA to be translated

It must use reverse transcriptase to convert RNA to DNA

It must become a prophage before replicating

3 out of 5

Kumaun University Botany PhD Entrance Questions Part-1

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