Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs

Pollination is brought about by the movement of water which brings the anthers of male flowers against the stigmas in case of

All diseases caused by viruses are of

The cohesion-tension theory of the translocation of water in plants was first introduced by

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

Which of the following plant pigments absorbs in red and far-red region of light?

Solar energy is converted into ATP in

Who among the following defined apomixis as the substitution for sexual reproduction of an asexual process which do not involve any nuclear fusion?

The ultimate cause of water movement in a plant stem against gravity is

Which of the following cell organelle is reponsible for cellular respiration?

The basic distinction between peroxidase and oxidase activity is that