A. Gibberellins
B. Cytokinins
C. Auxins
D. Ethene.
Correct Answer: Gibberellins ✔
Last Updated: May 23, 2018
Related MCQs
- Which of the following is antagonist to Auxin in terms of promotion of stem growth__________?
- Gibberellins may be substituted for __________ light, therefore promote flowering in long day plants?
- Chemically auxins are__________?
- Chlorosis, i.e., yellowish hue on the leaves results from__________?
- Which of the following tracheophytes are leafless?
- Sporangia of which of the following tracheopytes develop singly on the upper side of sporophylls which may or may not be arranged to form strobili__________?
- Which of the following group of tracheophyta has expanded or scale like leaves which are alwaysed arranges in whorls?
- Stem of Psilophyton an example of psilogsida is differentiated into an underground rhizome and an aerial part both of which are _________ branched
- Maize is an example of__________?
- Which of the following statement about dicots is incorrect __________?
- The first cell of the sporophyte generation is__________?
- Monocots are characterized by__________?
- The part of sporophyte which is called sporangium is__________?
- Microspore of a seed plant that contain male gametophyte including the gamete is called__________?
- In Hornworts the band of meristematic tissue is found near__________?
- In life cycle of Pinus megaspores produced by megasporangium divide into 4 megaspores by__________?
- Of the following four options which one is most advanced?
- Pinus Taxus and Picea belong to__________?
- In which group of tracheophytes ovules are born on the exposed surface of megasporophylls__________?
- Protonema is__________?
- Specialized protective coverings around megasporangium which vary in number are called__________?
- Due to which property of Adiantum and example of Filicinae is called Maidenhairfern__________?
- Antheridiophore and archegoniophore are found in__________?
- Which of the following statement about filicinae a group of tracheophytes is incorrect__________?
- The simplest of all bryophytes are__________?
- The arrangement of unequal dichotomous branches in one plane during evolution of leaves is called__________?
- Mosses are included in sub-division of __________?
- Megaphylls i.e. leaves with divided veins with an expanded lamina is a dharacteristic of __________?
- Which of the following plant group first formed true leaves__________?
- Sporophyte is__________?
- Ground pries are also known as__________?
- The zygote formed in liverworts is__________?
- Production of two types of spores is known as__________?
- The space between the overtopped dichotomous branches was occupies by a sheet of _________ cells during evolution of megaphyllas?
- Which of the following statement about alternation of generation in bryophytes is incorrect?
- The dichotomously branching system has shape similar to__________?
- In bryophytes fertilization takes place in__________?
- Megaphylls are characteristic for__________?
- Horsetails are included in class of__________?
- Of the following which one is not the characteristic of the plants included in psilopsida__________?
- Hornwarts are included in sub-class of __________?
- Today the land habitat is dominated by__________?
- Bryophtes are called amphiabians of plant world because:
- Equistem is an example of__________?
- Which of the following tracheophytes are also called arthrophytes__________?
- In term of spore production Selaginella is characterized by__________?
- Which of the following is an example of the living member of Psilopsida__________?
- Gametophyte of Psilopsida develops a symbiotic association with which of the following__________?
- cells are of__________types?
- prokaryotic and eukaryotic are two types of__________?
- in animals meiosis produces__________?