List of top Botany Questions asked in CUET (PG)

Ethylene is a phytohormone and also: A. Known as fruit ripening hormone B. Causes leaf epinasty in tomato, potato and pea C. Induces flowering in pine apple and mango D. Promotes formation of male flowers and suppresses the number of female flowers considerably E. Promotes abscission of leaves in plants. Choose the correct answer from the options given below:

The egg apparatus in the mature embryo sac consists of a single egg cell in ________.

Identify the correct statements about 'Probiotics'. A. are living organisms B. have multiple interaction with the host C. in adequate amount, confers health benefits to the host D. Bifidobacterium and Lactobacillus E. used in antibiotic associated diarrhea. Choose the correct answer from the options given below:

Identify correct statements about 'Enzyme'. A. Enzymes are the protein biocatalysts which are synthesized by the living cells. B. An enzyme is specific in its action, possessing active site. C. Enzyme activities are inhibited by only reversible manner. D. Many enzymes require certain non-protein substrate called cofactor for their action. E. Estimation of serum enzymes is of great help in the diagnosis of several diseases. Choose the correct answer from the options given below:

Identify correct statements about 'DNA content'. A. Each species has a characteristic content of DNA. B. Eukaryotes always contain much more DNA than prokaryotes. C. Lower eukaryotes in general have higher DNA than E. coli. D. Vertebrates have equal amount of DNA as in E. coli. E. 1 pg of DNA is equivalent to 93 cm of DNA. Choose the correct answer from the options given below:

Identify the wrongly paired options given below regarding the shape of plastids. A. Girdle shaped in Ulothrix B. Reticulate in Cladophora C. Discoid in Oedogonium D. Spiral in Hydrodictyon E. Stellate in Zygnema. Choose the correct answer from the options given below:

The Quiescent centre in root apex is defined correctly by which of the following? A. group of relatively inactive cells B. group of inactive cells that never divide C. group of infrequently dividing cells D. lies between protoderm and procambium E. derived from hypophysis of embryo. Choose the correct answer from the options given below:

Which among the following do not represent the correctly matched group? A. Dermatogen - Periblem - Plerome B. Calcium oxalate - Raphides - Cystoliths C. Sieve tube element - P Proteins - Companion cell D. Sieve cell - Sieve tube element - Perforation plates E. Sieve plate - Sieve area - Callose. Choose the correct answer from the options given below:

Identify the correct statements from the following. A. Species of Cycas are strictly monoecious. B. The ovule of Cycas is orthotropous. C. Female cones of Cycas are larger than male cones. D. The intine of microspores in Pinus expand on lateral sides to form the wings. E. The roasted seeds of Pinus gerardiana are edible. Choose the correct answer from the options given below:

Identify the correct statements regarding factors influencing development of a plant disease. A. Host nutrition often influences development of a disease in plant B. Many leaf diseases are favored by high level of nitrogen in soil C. Deficiency of potash in plants renders the tissue tolerance to water soaking D. High calcium decreases resistance to wilt and soft rot diseases E. Root diseases favoured by high temperature are often controlled by irrigation. Choose the correct answer from the options given below:

Which among the following are correct statements? A. Protophloem is a part of secondary phloem B. Included phloem constitutes phloem strands in secondary xylem C. Secondary phloem originates from procambium D. Internal phloem constitutes phloem strands in pith E. Included phloem constitutes phloem strands in pith. Choose the correct answer from the options given below:

Identify the correctly paired terms from the following: A. Laticifers - Papavaraceae B. Pollinia - Asclepiadaceae C. Cypsela - Asteraceae D. Carpopodium - Apiaceae E. Schizocarp - Poaceae. Choose the correct answer from the options given below:

Arrange the layers of tissues from the centre to periphery as observed in a woody dicot stem. A. Vascular cambium B. Periderm C. Primary xylem D. Secondary phloem E. Secondary xylem. Choose the correct answer from the options given below:

Arrange the different phases of photosynthesis in the correct sequence. A. Capturing the solar energy B. Formation of higher-energy organic intermediates C. Splitting of water and release of oxygen D. Fixation of CO2 into 3-phosphoglycerate E. Reduction of phosphoglycerate into glyceraldehyde-3-phosphate. Choose the correct answer from the options given below: