#Question id: 23842
#Unit 2. Cellular Organization
#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: 10462
#Unit 6. System Physiology – Plant
During an experiments mutating the conserved cysteine in the LOV1 domain of phot1 does not affect phototropic responsiveness (the seedlings bend toward blue light) whereas the equivalent mutation in LOV2 abolishes the response. What will be the conclusion has been drawn from this experiments?
a) LOV1 domain is secondarily responsible (primarily responsible is LOV2 domain) for kinase activation and LOV1 is not is coupled with the protein region Jα-helix that’s why it does not affect phototropic responsiveness
b) These studies have demonstrated that LOV2 domain is primarily responsible for kinase activation in response to blue light
c) This is due in part to the position of LOV2 within the phototropin molecule, where it is coupled to a protein region known as the Jα-helix
d) The function of LOV2 domain is thought to play a role in receptor dimerization by accomplishing the kinase activation in response to blue light
Which of the correct conclusion drawn from the above experiment?
#Question id: 4798
#Unit 8. Inheritance Biology
In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. We’ll use the symbol Bb for the beard allele and B for the beardless allele. Another independently assorting autosomal allele that produces a black coat (W) is dominant over the allele for white coat (w). A cross allowed between BBbWw (male) X BBbWw (female). What is proportional of female progeny will beard with black coat?
#Question id: 650
#Unit 1. Molecules and their Interaction Relevant to Biology
On the basis of hypothetical binding curve given below, which of the following statement is INCORRECT