Assertion Reason Test: Reproduction in Organisms - NEET MCQ

A: The higher organisms must evolve a special mechanism for gamete transfer.

R: Male and female gametes are formed in different individuals.

A: Air layering does not produce a composite plant.

R: Stock and scion are fused to form a composite plant during grafting.

A: Most of the species of Chara are monoecious but show cross-fertilization.

R: The plant body shows a protandrous condition.

A: Multiplication occurs rapidly with an equal rate in apomixis as well as in amphimixis.

R: Both types show mitotic as well as meiotic division.

A: Fucus, a brown alga, shows oogamy.

R: Female gamete is quite large as compared to male gamete.

A: Runner, tuber, sucker, offset etc. are vegetative propagules.

R: Two parents are involved in the formation of these structures.

A: Cereals are monocarpic plants.

R: They have distinct juvenile, reproductive and senescent phases.

A: The number of male gametes produced is several times than the number of female gametes produced.

R: This compensates the loss of male gametes during movement.

A: In Volvox, heterogametes are formed in the sexual life cycle.

R: Non-motile gametes are transferred by water.

A: Zygote is the first cell of the new generation in all sexually reproducing organisms.

R: Cell division and cell differentiation are the stages of embryogenesis.

A: Water hyacinth is one of the most invasive weed.

R: It increases the dissolved oxygen of water.

A: No individual is immortal except one-celled organisms.

R: A few number of plant and animal species have existed on earth and do not die because of budding.