Plant and animal development share a number of features,but differ in major ways as well.Which of the following best summarizes the differences between the two forms of development?
A)Animal tissues are irreversibly differentiated;plant tissues retain plasticity throughout life.
B)Animal cells frequently undergo programmed cell death;plant cells do not.
C)Animal development is controlled by regulatory gene sets such as Hox genes;plants have no similar control systems.
D)Animal gametes are produced only after maturity is reached;plant gametes can be produced throughout a plant's lifetime.

Question

Quizplus · Accepted Answer

Animal tissues are irreversibly differentiated, meaning they cannot change their cell type or function once they have developed. In contrast, plant tissues retain plasticity throughout life, enabling them to differentiate into a variety of cell types depending on environmental cues.

Answer: B
 Animal cells frequently undergo programmed cell death, which is essential for proper development and tissue remodeling. In contrast, plant cells do not undergo programmed cell death to the same extent, although they can still undergo apoptosis under certain conditions.

Answer: C
 Animal development is controlled by regulatory gene sets such as Hox genes, which help to specify the body plan and coordinate the development of different organs and tissues. Plants have similar control systems, including homeobox genes and other transcription factors, but they are less well understood.

Answer: D
 Animal gametes are typically produced only after maturity is reached, at which point the reproductive organs have developed. In contrast, plant gametes can be produced throughout a plant's lifetime, enabling them to reproduce continuously and potentially adapt to changing environmental conditions.

Plant and Animal Development Share a Number of Features,but Differ