Which of the following statements is not true for Hfr strains of E. coli ?

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#Question id: 14740

#Unit 4. Cell Communication and Cell Signaling

Rod cells sense light with the aid of a light-sensitive GPCR known as rhodopsin; choose incorrect statements

a. Rhodopsin consists of the protein opsin, which has the usual seven–transmembrane segment GPCR structure, covalently linked to a light-absorbing pigment called retinal. 

b. Rhodopsin, found only in rod cells, is localized to the thousand or so flattened membrane disks that make up the inner segment of each of these rod-shaped cells.

c. A human rod cell contains about 4 × 10⁷ molecules of rhodopsin. 

d. The heterotrimeric G protein coupled to rhodopsin, called transducin (Gt), contains a Gα unit referred to as Gαt; like rhodopsin, Gαt is found only in rod cells.

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#Question id: 1745

#Unit 4. Cell Communication and Cell Signaling

On injection into mice, bovine serum albumin conjugated with dinitrophenol (DNP) behaves as a:

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#Question id: 26509

#Unit 3. Fundamental Processes

How many introns are their in pre-tRNA transcript

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#Question id: 2314

#Unit 2. Cellular Organization

Mitochondria are inherited from.

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#Question id: 33351

#Unit 1. Molecules and their Interaction Relevant to Biology

When exposed to oxygen, isolated heme