Why is Caenorhabditis elegans an appropriate model organism for studying developmental processes?
A) C. elegans does not undergo programmed cell death
B) C. elegans have meristems, regions that contain many stem cells
C) C. elegans are transparent, and have only about 1000 cells, allowing the cells to be followed during development.
D) C. elegans have millions of cells, but can be easily mutated to have no gastrulation.
E) C. elegans have genes that are completely unique from mice and humans.
Answer: C
You might also like to view...
What are the specific environmental consequences of a phytoplankton bloom?
a. An increase in phytoplankton acidifies ocean water. b. Phytoplankton are decomposed by aerobic bacteria, which depletes the surrounding water of oxygen. c. Phytoplankton fix nitrogen in the water causing nitrification. d. Phytoplankton are decomposed by anaerobic bacteria which enriches the surrounding water with oxygen. e. Phytoplankton use up hydrogen ions, which decreases the acidity of the surrounding water.
Hotspot regions make up only 2 percent of the total land mass but contain what percentage of the world's endemic plant species?
A) 2 percent B) 50 percent C) 75 percent D) 90 percent
The only way that cells can produce ATP in the absence of oxygen is through the process of ________
Fill in the blank(s) with correct word
What is the role of NADP+ in photosynthesis?
a. It assists chlorophyll in capturing light. b. It acts as the primary electron acceptor for the photosystems. c. It is part of the electron transport chain and is involved with the manufacture of ATP. d. It assists photosystem II in the splitting of water. e. It is reduced and then carries electrons to the Calvin cycle.