Hook formation and maintenance result from ethylene-induced asymmetric growth,  indicating that phytochrome is the photoreceptor involved in this process

a) Red light induces hook folding, and far-red light reverses the effect of red

b) close interaction between phytochrome and ethylene controls hook opening

c) Red light inhibits ethylene formation, promoting growth on the inner side, thereby causing the hook to open

Which of the following combination from the given statements is correct?

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#Question id: 33695

#Unit 2. Cellular Organization

if an individual has only one α gene, the excess β chains form the unusual tetramer b4, which causes

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#Question id: 7275

#Unit 5. Developmental Biology

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 4, metamorphosis would

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#Question id: 4376

#Unit 3. Fundamental Processes

Which of the following is the correct order of binding of general transcription factors to initiate transcription at RNA polymerase II promoters?

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#Question id: 21278

#Unit 12. Applied Biology

Which one of the following are highly efficient and have high molecular weight?

 1. Enzyme

 2. Catalysts

 3. Substrate

Which of the following option is correct?

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#Question id: 31182

#Unit 4. Cell Communication and Cell Signaling

Wnt signaling receptor, Frizzled (Fz), shows similarity with: