Question

Tetradynamous condition has:
A. Six stamens, two short four long
B. Six stamens, two long four short.
C. Six stamens, two short in the outer whorl and four long in the inner whorl
D. Four stamens, two short and two long in outer and inner whorls respectively.

Answer 1

Hint: Contingent upon the types of plant, a few or the entirety of the stamens in a flower might be connected to the petals or the botanical hub. They additionally might be detached or fused from numerous points of view, including a combination of a few yet not all stamens. The fibers might be fused and the anthers free, or the fibers free and the anthers fused

Complete answer:
The tetradynamous state of the stamens happens when there are six stamens; the external two whorls are shorter stamens and the inward four whorls longer stamens. It is found in Brassica.
Consequently, the right answer is 'Six stamens, two short in the external whorl and four long in an internal whorl. So, option C is correct.
In Brassica, there are six stamens. These six stamens are arranged in two whorls, external two short in the outer whorl and four long in an inner whorl, with (2+4) arrangement.
This condition is known as tetradynamous.
Anthers are polyandrous, dithecous, basifixed, and introrse.
Plate-like nectaries, variable in number, present at the base of stamens. Sometimes the quantity of stamens is variable – 16 (Megacarpaea), 4 (Cardaminehirsuta), 2 (Chirsutes), and so on.

Hence, option C is the correct answer.

Note: Stamen, the male reproductive part of a flower.
In everything except a couple of surviving angiosperms, the stamen comprises a long slim slender filament, with a two-lobed anther at the tip.
The anther comprises four saclike structures (microsporangia) that produce dust for fertilization.
Little secretory structures, called nectaries, are frequently found at the base of the stamens; they give food compensations to creepy crawly and bird pollinators.
All the stamens of a flower are aggregately called the androecium.