Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
Options
(a) absence of secondary phloem (b) presence of cortex (c) position of protoxylem (d) absence of secondary xylem
Correct Answer: […]
Which one of the following is commonly used in transfer of foreign DNA into crop plants?
Options
(a) Meloidogyne incognita (b) Agrobacterium tumefaciens (c) Penicillium expansum (d) Trichoderma harzianum
Correct Answer:
Agrobacterium tumefaciens
The epithelial tissue present on the inner surface of bronchioles and fallopian tube is:
Options
(a) glandular (b) ciliated (c) squamous (d) cuboidal
Correct Answer:
ciliated
Explanation:
Ciliated epithelium has simple columnar epithelial […]
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
Options
(a) elongating (b) widening (c) differentiating (d) maturing
Correct Answer:
maturing
Explanation:
The annular […]
Which one of the following is considered important in the development of seed habit?
Options
(a) Heterospory (b) Haplontic life cycle (c) Free -living gametophyte (d) Dependent sporophyte
Correct Answer:
Heterospory
Explanation:
No […]
Mannitol is the stored food in
Options
(a) Porphyra (b) Fucus (c) Gracillaria (d) Chara
Correct Answer:
Fucus
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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