List of top Botany Questions

Flooding stress is also known as:

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

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

White jute is obtained from:

Which of the following is used to stain endospores?

Which of the following bacteria belong to the coliform group ?
A. Escherichia coli
B. Streptococcus faecalis
C. Clostridium perfringens
D. Bacillus
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Mesosome is a specialized and differentiated form of __________.

Which of the following is incorrectly matched ?

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

Match the LIST-I with LIST-II

LIST-I Class of Mutagens	LIST-II  Examples
A. Alkylating agent	III. Mustard gas
B. Base analog	IV. 5-Bromouracil
C. Intercalating agent	I. Acridine Orange
D. Deamination agent	II. Nitrous acid

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

Which of the following order is not included in Stachyospermae?

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

Match the LIST-I with LIST-II

LIST-I (Characteristic, feature)	LIST-II  (Family)
A. Monoadelphous stamen	I. Malvaceae
B. Cremocarp	III. Apiaceae
C. Gynobasic style	II. Lamiaceae
D. Capitulum	IV. Asteraceae

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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 Met-tRNA.
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The major phytochemicals present in leaves of Camellia sinensis are:
A. Epicatechin gallate
B. Caffeine
C. Theobromine
D. Epigallocatechin gallate
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Which of the following mutations is most likely to contribute to the development of cancer?

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

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

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:

Match the LIST-I with LIST-II

LIST-I Gene Interaction	LIST-II  Dihybrid ratio for a single character
A. Duplicate dominant epistasis	I. 9:7
B. Duplicate recessive epistasis	II. 15:1
C. Recessive epistasis	III. 9:3:4
D. Dominant & Recessive Epistasis	IV. 13:3

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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

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:

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

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 with this plasmid and allowed to grow on a nutrient medium plate with X-gal and IPTG?