Plant Anatomy And Physiology - Study Mode
[#121] Pollination is brought about by the movement of water which brings the anthers of male flowers against the stigmas in case of
Correct Answer
(A) Vallisneria
[#122] All diseases caused by viruses are of
Correct Answer
(C) Systemic type
[#123] The cohesion-tension theory of the translocation of water in plants was first introduced by
Correct Answer
(A) Dixon
[#124] Consider the following statements regarding Xenia and choose the correct answer: 1. If a white variety (yy) is pollinated with pollen from a yellow variety (YY), one of the male gametes (Y) will unite with the egg (y) to produce a hybrid embryo (Yy) which will act as a heterozygote for yellow endosperm in the next generation 2. The second male gamete (Y) will unite with the two polar nuclei (y, y) and produces the primary endosperm nucleus (Yyy) which is triploid 3. If a yellow endosperm variety (YY) is crossed with pollen from a white grained variety, the grains produced are white like the pollen parent
Correct Answer
(A) Only 1 and 2 are true
[#125] Which of the following plant pigments absorbs in red and far-red region of light?
Correct Answer
(A) Chlorophyll