List of top Botany Questions

Identify the correct combinations:

Physiological Effect	Positive Role	Negative Role
I. Senescence	Abscisic Acid	Gibberellins
II. Seed Germination	Ethylene	Abscisic Acid
III. Seed Dormancy	Abscisic Acid	Ethylene
IV. Apical Dominance	Auxin	Cytokinin

Match the following:

List-I
A. Inhibitor of catalytic activity
B. Possess peptide bonds
C. Fungi cell wall material
D. Secondary metabolite

List-II
I. Ricin
II. Chitin
III. Collagen
IV. Malonate

Match the following lists and select the correct option:

List-I
I. Early wood
II. Late wood
III. Duramen
IV. Alburnum

List-II
A. Light in colour
B. Dead elements, lignified walls
C. Less xylem vessels
D. More xylem vessels

List-III
P. Have wider lumen
Q. Have narrow lumen
R. Mechanical support
S. Conduction

Match the following:

List-I (Subphase of Prophase-I)	List-II (Specific Characters)
A. Diakinesis	I. Synaptonemal complex formation
B. Pachytene	II. Completion of terminalization of chiasmata
C. Zygotene	III. Chromosome looks like thin threads
D. Leptotene	IV. Appearance of recombination nodule

From the following lists, choose the incorrect combination:

List-I	List-II	List-III
A	Photoautotroph — Atmospheric \(CO_2\)	Chlorobium
B	Chemoautotroph — Inorganic compounds	Salmonella
C	Photoheterotroph — Organic source	Rhodospirillum
D	Chemoheterotroph — Organic compounds	Xanthomonas

Match the following:

List-I	List-II
A. Thalamiflorae	I. 3 cohorts
B. Disciflorae	II. 5 cohorts
C. Calyciflorae	III. 4 cohorts
D. Heteromere	IV. 6 cohorts

Match the following:

List-I	List-II
A. Linkage	I. Common in cancer cells
B. Recombination	II. Parental gene combination
C. Point mutation	III. Non-parental combination
D. Chromosomal aberration	IV. Sickle cell anemia
	V. Multiple phenotypes

Identify the correct statements:

Statement No.	Statement
I	Arachis and Crotalaria show diadelphous stamens.
II	Fruit in Nicotiana and Solanum is berry.
III	Pisum and Lathyrus exhibit self-pollination.
IV	Carpels are arranged obliquely at \(90^\circ\) in Solanaceae.

Identify the incorrect pair:

Character	Dominant Trait	Recessive Trait
I	Seed colour Green	Yellow
II	Flower colour White	Violet
III	Flower position Axial	Terminal
IV	Pod colour Green	Yellow

Identify the incorrect statements:

Statement No.	Statement
I	Capping = Addition of methyl guanosine triphosphate at the 5' end of hnRNA
II	Tailing = Addition of adenylate residues at the 3' end of hnRNA
III	Splicing = Joining of introns and removal of exons
IV	Ochoa's enzyme = Helps in enzymatic synthesis of RNA

Match the following:

List-I (Name of the Stele)	List-II (Character)
A. Protostele	I. Dissected siphonostele with overlapping leaf gaps
B. Siphonostele	II. Siphonostele with scattered leaf gaps
C. Solenostele	III. Medullated protostele
D. Dictyostele	IV. Xylem surrounded by phloem

Match the following:

List-I	List-II
A. Cell wall lacks pectin	I. Eubacterium
B. Cell wall with polysulphate esters	II. Laminaria
C. Cell wall with chitin	III. Polysiphonia
D. Cell wall with murin	IV. Neurospora
	V. Mycoplasma

Identify blank spaces A, B, C and D in the following table and select the correct option:

Type of Microbe	Scientific Name	Commercial Product
Bacterium	A	Streptokinase
B	Aspergillus niger	Citric acid
Fungus	Trichoderma polysporum	C
Bacterium	D	Butyric acid

Match the following:

List-I	List-II
A. Trichoderma	I. Free-living nitrogen-fixing bacteria
B. Penicillium	II. Biocontrol agent
C. Azospirillum	III. Free-living nitrogen-fixing cyanobacteria
D. Anabaena	IV. Source of antibiotic