#Question id: 5665
#Unit 5. Developmental Biology
Following statements are regarding to cortical granule reaction.
A. To initiating the slow block to polyspermy the release of Ca2+ that occurs when the sperm enters the egg is critical for activating the egg’s metabolism and initiating development
B. Calcium ions release the inhibitors from maternally stored messages, allowing these mRNAs to be translated
C. Calcium ions are not release the inhibition of nuclear division, thereby allowing cleavage to occur.
D. Udx1, the enzyme responsible for the reduction of oxygen to crosslink the fertilization envelope, is also NADPH-dependent
E. The fertilization envelope is elevated from the cell membrane by glycosaminoglycans which provides support for the blastomeres during cleavage
Which of the following combinations are correct?
#Question id: 1424
#Unit 4. Cell Communication and Cell Signaling
Gain-of-function mutations in which of the following genes typify colorectal carcinomas?
#Question id: 10373
#Unit 6. System Physiology – Plant
The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given below;
a) nod A is a common nod gene and nod Q is a host specific gene
b) nod B is a common nod gene and nod C is a host specific gene
c) nod C is a common nod gene and nod H is a host specific gene
d) nod H is a common nod gene and nod P is a host specific gene
Choose the correct answer from the above statements:
#Question id: 50
#Unit 1. Molecules and their Interaction Relevant to Biology
The enzyme fumarase catalyzes the reverse hydration of fumaric acid to l-malate, but it will not catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an example of:
#Question id: 703
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements concerning protein domains is true?