The following experiment is designed to study the role of several hormones in the regulation of metamorphosis in frogs.

Group #	Treatment	Days to Metamorphosis
1	Saline	30
2	Prolactin	> 100
3	TSH	15
4	Thyroxine	10
5	Corticosterone	30
6	Thyroxine + Corticosterone	5
7	Prolactin + TSH	30
8	Thyroid gland removed	> 100

 If the thyroid gland were removed from the tadpoles in Group 3, metamorphosis would

#Question id: 7753

#Unit 5. Developmental Biology

#Question id: 82

#Unit 1. Molecules and their Interaction Relevant to Biology

The structures of D-ribose and D-arabinose are shown below. These two molecules are

#Question id: 5276

#Unit 8. Inheritance Biology

Donor Strain ABCDE transformation to   recipient strain abcde. Co-transformation check by using media with different supplement?

What is a order of gene ?

#Question id: 11481

#Unit 7. System Physiology – Animal

Which of the following sensory receptors is correctly paired with its category?

#Question id: 1523

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to the apoptosis which is induced by trophic factors.

A. The presence of specific trophic factors (e.g., NGF) leads to activation of their cognate receptor tyrosine kinases (e.g., TrkA) and activation of the PKB pathway.

B. DNA damage or ultraviolet irradiation leads to induction of synthesis of the BH3-only Puma protein. Puma binds to Bak and Bax as well as to Bcl-2, allowing Bak and Bax to form oligomeric pores.

C. Removal of a cell from its substratum disrupts integrin signaling, leading to release of the BH3-only Bim protein from the cytoskeleton.

D. Binding of extracellular death signals, such as tumor necrosis factor and Fas ligand, to their receptors oligomerizes an associated protein (FADD), which in turn triggers the caspase cascade, leading to cell murder by apoptosis.

Which of the following pathway does not belong to the trophic factor inducing apoptotic pathway?