Previous Year Questions

QUESTION ID:2

In angiosperms, which process involves the fusion of male gamete with the egg cell?

QUESTION ID:3

Which of the following is used to stain endospores?

QUESTION ID:4

Match the LIST-I with LIST-II 

QUESTION ID:5

Which of the following bacteria belong to the coliform group?

A. Escherichia coli,

B. Streptococcus faecalis,

C. Clostridium perfringens,

D. Bacillus

QUESTION ID:6

To increase the amount of mugineic acid, rice plants were transformed (using Agrobacterium) with a fragment of barley genomic DNA containing two naat genes: naat-A and naat-B, encoding the subunits of the enzyme ___________.

QUESTION ID:7

Guttation occurs when:

QUESTION ID:8

A flower is hypogynous with axile placentation and swollen placenta. Which family does this flower belong to?

QUESTION ID:9

Flooding stress is also known as:

QUESTION ID:10

What is the role of NAD(P)H as a component of Nitrate reductase in Nitrogen fixation? 

QUESTION ID:11

White jute is obtained from:

QUESTION ID:12

The major phytochemicals present in leaves of Camellia sinensis are:

A. Epicatechin gallate,

B. Caffeine,

C. Theobromine,

D. Epigallocatachin gallate

QUESTION ID:13

Match the LIST-I with LIST-II

QUESTION ID:14

The botanical name of Fenugreek (methi):

QUESTION ID:15

Match the LIST-I with LIST-II

QUESTION ID:16

A specimen cited in the protologue is neither the holotype nor an isotype, nor one of the syntypes. If two or more specimens were simultaneously designated as types, they are known as:

QUESTION ID:17

Match the LIST-I with LIST-II 

QUESTION ID:18

Match the LIST-I with LIST-II 

QUESTION ID:19

In which of the following molecular markers, polymerase chain reaction (PCR) is required?

A. Restriction Fragment Length Polymorphism (RFLP),

B. Random Amplified Polymorphic DNAs (RAPD),

C. Amplified Fragment Length Polymorphism (AFLP),

D. Sequence-Tagged Sites (STSs)

Choose the correct answer from the options given below:

QUESTION ID:20

The genera which belongs to the family Characeae are:

A. Tolypella,

B. Nitella,

C. Nigella,

D. Chara

Choose the correct answer from the options given below:

QUESTION ID:21

The elements of the xylem are:

A. Tracheids

B. Vessels

C. Xylem parenchyma

D. Sclereids

Choose the correct answer from the options given below:

QUESTION ID:22

The role of Bulliform cells in monocotyledonous leaves is: 

QUESTION ID:23

Match the LIST-I with LIST-II 

QUESTION ID:24

Which of the following statements are correct regarding protein synthesis in eukaryotes?

A. 3'-Cap of mRNA present.

B. Ribosomes of 80S type dissociate into 40S and 60S subunits.

C. Translation is not simultaneous with transcription.

D. Initiation codon of mRNA is recognised by anticodon of ^MettRNA

Choose the correct answer from the options given below:

QUESTION ID:25

Paracytic type of stomata are distinctive feature of:

QUESTION ID:26

Selaginella is also known as: 

QUESTION ID:27

Specialised cells are generally found in the plant leaves which contain outgrowths of epidermal cell wall, made of calcium carbonate or silicon dioxide in a cellulose matrix are called as:

QUESTION ID:28

Which of the following amino acid is basic in nature?

QUESTION ID:29

The example of facultative CAM plant which carries on C₃ metabolism under unstressed conditions is:

QUESTION ID:30

Arrange the following substrates of the glycolysis pathway in a chronological order of their occurrence... starting from Glucose.

A. Fructose-6-phosphate

B. Pyruvic acid

C. Glucose-6-phosphate

D. 2-Phosphoglycerate

Choose the correct answer from the options given below:

QUESTION ID:31

Identify the plants from the following which do not exhibit Kranz anatomy:

A. Aloe

B. Zea mays

C. Agave

D. Opuntia

Choose the correct answer from the options given below:

QUESTION ID:32

Match the LIST-I with LIST-II

QUESTION ID:33

What is the correct general scheme of the fungal succession on herbivore dung:

A. Basidiomycetes

B. Discomycetes

C. Phycomycetes

D. Pyrenomycetes

Choose the correct answer from the options given below:

QUESTION ID:34

Which of the following is a macrophyte?

QUESTION ID:35

The common inter-cellular parastic algae among the following is:

QUESTION ID:36

The requirement of sunlight for the germination of seeds, is known as: 

QUESTION ID:37

Among the following ecosystems, which has the least Net Primary Production (NPP)? 

QUESTION ID:38

Which of the following is NOT the characteristic feature of xerophytic plants? 

QUESTION ID:39

'Aconite', a drug used for nasal problems and sore throat, is obtained from tuberous roots of:

QUESTION ID:40

 If the number of chromosomes in the egg cell of a plant is 8, then what would be the number of chromosomes in its endosperm?

QUESTION ID:41

Which of the following mutations is most likely to contribute to the development of cancer? 

QUESTION ID:42

What is the correct sequence of Transmembrane multiprotein complexes of the electron transport chain during respiration?

A. Succinate dehydrogenase

B. NADH dehydrogenase

C. Cytochrome c oxidase

D. Cytochrome bc1 complex

Choose the correct answer from the options given below:

QUESTION ID:43

Which nitrogen fixing symbiont is associated with sugarcane as a host plant?

QUESTION ID:44

Cytokinin treatment extends the life span of detached Xanthium leaves by delaying chlorophyll and protein degradation. This experiment is called:

QUESTION ID:45

Which among the following is responsible for imparting blue and purple colour in some type of berries? 

QUESTION ID:46

Synchytrium is

QUESTION ID:47

During sexual reproduction in Rhizopus, projections from two compatible hyphae are attracted towards each other. These hyphae are called

QUESTION ID:48

Arrange the stages in the life cycle of "Puccinia graminis" in correct order of their occurrence...

A. Teliospores appear as black raised streaks...

B. Basidiospores are discharged...

C. Uredinospores germinate on wheat...

D. Basidiospores germinate on the leaves of the alternate host.

Choose the correct answer from the options given below:

QUESTION ID:49

Which one of the following is a correct example of Fruticose Lichen? 

QUESTION ID:50

In Sphagnum, the sporogonium is elevated by a special gametophytic structure known as:

QUESTION ID:51

Censer mechanism for spore dispersal from the capsule occurs in

QUESTION ID:52

Circinate vernation in ferns refers to -

QUESTION ID:53

The characteristic of Cleistogamous flowers is:

QUESTION ID:54

What is the role of Gibberellic acid in plants?

QUESTION ID:55

Which of the following hormones is synthesized from methionine?

QUESTION ID:56

The early development of monocot and dicot embryo is similar up to which stage? 

QUESTION ID:57

Mesosome is a specialized and differentiated form of

QUESTION ID:58

In which specific region of the chloroplast, does Calvin cycle occurs? 

QUESTION ID:59

A eukaryotic cell is exposed to a chemical that inhibits the 5' capping of pre-mRNA. What is the most likely effect on translation?

QUESTION ID:60

What effect does the hypermethylation of promoter regions typically have on gene expression?

QUESTION ID:61

Treating chromatin with a non specific nuclease yields a segment of about 168 bp which is bound to 9 histone molecules... This whole structure is known as:

QUESTION ID:62

The correct karyotype description of Patau Syndrome is

QUESTION ID:63

What is the primary function of Bt toxin in genetically modified crops like Bt Cotton?

QUESTION ID:64

A plasmid vector contains a multiple cloning site (MCS) within the lac-Z gene. If foreign DNA is inserted into the MCS, what happens when competent cells are transformed... 

QUESTION ID:65

Sequentially arrange the steps involved in cryopreservation of plant cells in order of their occurrence.

A. Raising sterile tissue culture

B. Determination of viability

C. Freezing, Storage

D. Addition of cryoprotectants.

Choose the correct answer from the options given below:

QUESTION ID:66

Which of the following is a characteristic feature of Bacterial Artificial Chromosome (BAC) vector?

QUESTION ID:67

Which sequence of steps is correct in the development of a genetically modified (GM) crop?

A. Insertion of the gene into the vector.

B. Identification of a desired gene.

C. Selection and screening of transformed plants.

D. Transfer of the vector into a plant cell.

Choose the correct answer from the options given below:

QUESTION ID:68

Which of the following order is not included in Stachyospermae? 

QUESTION ID:69

Match the LIST-I with LIST-II

QUESTION ID:70

Which of the following is incorrectly matched?

QUESTION ID:71

The enzyme responsible for synthesizing RNA primers during DNA replication is - 

QUESTION ID:72

Which of the following best explains the fluidity of the plasma membrane?

QUESTION ID:73

Sequence the following events involved in a point mutation in DNA.

A. Alteration in the amino acid sequence of a protein.

B. Change in mRNA codon during transcription.

C. Substitution of a single nucleotide in the DNA sequence.

D. Possible disruption of protein function or structure.

Choose the correct answer from the options given below:

QUESTION ID:74

Identify the correct sequence of steps in a dihybrid cross to test Mendel's Law of Independent Assortment  

A. Selection of two traits in the parent generation.

B. Crossing of pure-breeding parents.

C. Analysis of phenotypic ratios in the F₂ generation.

D. Observations of gamete combinations in the F₁ generation.

Choose the correct answer from the options given below:

QUESTION ID:75

Select the phases which are included in the 'Interphase'.  

A. S phase

B. M phase

C. G₁ phase

D. G₂ phase

Choose the correct answer from the options given below: