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TLS Online TPP Program

#Question id: 2215

Which statement describes the mode of action of the ABCB1 transporter (the first eukaryotic ABC transporter to be recognized)?

#Unit 2. Cellular Organization

  1. During transport, the ligand binding site is alternately exposed to the exoplasmic and the cytoplasmic side of the membrane.

  2. During transport, a conserved aspartate residue is phosphorylated.

  3. This class of pumps transports only H+ ions.

  4. This transporter acts as a chloride channel.

More Questions
TLS Online TPP Program

#Question id: 33913

#Unit 2. Cellular Organization

A. Underwinding of a B-DNA helix might facilitate or stabilize the formation of Z-DNA.
B. Underwinding aids in the transition by providing a local region of unwound DNA that allows the shift to Z-DNA.
C. Overwinding of a B-DNA helix might facilitate or stabilize the formation of Z-DNA.
D. Overwinding aids in the transition by providing a local region of unwound DNA that allows the shift to Z-DNA.

What is correct combination of statements
TLS Online TPP Program

#Question id: 28988

#Unit 7. System Physiology – Animal

Adrenal medullary PNMT is induced by_____
TLS Online TPP Program

#Question id: 15457

#Unit 4. Cell Communication and Cell Signaling

Activation-Induced Cytidine Deaminase (AID), which was subsequently shown to be necessary for
TLS Online TPP Program

#Question id: 2696

#Unit 2. Cellular Organization

Inverted repeat have a number of biological functions. Which of the following is a biological function of an inverted repeat?
TLS Online TPP Program

#Question id: 4884

#Unit 8. Inheritance Biology

True breeding brown dogs with genotype aabb were cross to true breeding white dogs with genotype AABB. All F1 offspring having white phenotype were allowed to intercross to produce F2 progeny as following number –

A- - - 118 white,

aa B- 32 black

aa bb 10 brown

A Male Dog with AaBb genotype was cross with female dog with aabb genotype. What is probability of Black phenotype among their offspring if A gene link B gene at 10 map unit at cis configuration?