Question

In the unisexual plant, the sex can be changed by the application of
A.Ethanol
B.Auxins
C.Cytokinin
D.ABA

Answer 1

Hint:-A powerful growth hormone delivered normally by plants. They are found in shoot and root tips and advanced cell division, stem, and root development. They can likewise radically influence plant direction by elevating cell division aside of the plant in light of daylight and gravity

Complete Answer:-At the point when auxin hormone is applied to the male blossoms, it will get female and the female bloom can turn into a male blossom if auxin is applied to it.
This is called a sex change. Auxin, any of a gathering of plant hormones that manage development, especially by invigorating cell lengthening in stems.
Auxins additionally assume a function in cell division and separation, inorganic product improvement, in the development of roots from cuttings, in the restraint of horizontal fanning (apical predominance), and in leaf fall (abscission).
Many other normally happening and manufactured mixes called auxins likewise have development advancing properties, however, they are not generally as dynamic as IAA.
A portion of these mixes, notwithstanding, oppose the enzymatic devastation that is the ordinary destiny of IAA inside the plant; this element is of extraordinary incentive in research and in agriculture since auxin activity can be delayed.
Both characteristic and engineered auxins are utilized in cultivation, farming, home planting, and plant science for the advancement of establishing, organic product setting, natural product diminishing, and natural product drop control. Other auxins like mixes are utilized as specific weed executioners.

So, the correct answer is “option- B”

Note:- Notwithstanding advancing typical development in plant length, IAA and different auxins impact the development of stems toward the light (phototropism) and against the power of gravity (geotropism). The blossoms of plant-like cucumber are unisexual, both male and female blossoms are borne on similar plant however these plants produce countless male blossoms and produce just a couple of female blossoms.