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TLS Online TPP Program

#Question id: 10132

Which of the following statements would be correct for photophosphorylation ?

#Section 2: General Biology
  1. Water is oxidized and protons are released in the lumen by PSII and reduces NADP+ to NADPH in the stroma both are spontaneous processes becoz their reduction potential is positive
  2. The sequential absorption of four photons (excitons) —known as S states, each absorption causing the loss of one electron from the Mn4Ca cluster, produces an oxidizing agent that can remove four electrons from two molecules of water, producing O2, the electrons lost from the Mn4Ca cluster pass one at a time to an oxidized Tyr residue in a PSII protein, then to P680+
  3. An alternative path of electron is cyclic electron transfer, in which elctron move from ferredoxin back to the cytochrome b6 f complex, the cyclic pathway produces more ATP and Water produces but less NADPH produces than the noncyclic
  4. Transfer of the two electrons to PQB reduces it to PQB 2–, and the reduced PQB 2– takes two protons from the stroma side of the medium, yielding a fully reduced plastohydroquinone (PQH2), the PQH2 then still remain bounded from the reaction center complex
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TLS Online TPP Program

#Question id: 13110

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Match the babies up with their actual parents.
 
BABYPARENTS
I. Baby Aa) Father and Mother #1
II. Baby Bb) Father and Mother #2
III. Baby Cc) Father and Mother #3
TLS Online TPP Program

#Question id: 13115

#Section 3: Genetics, Cellular and Molecular Biology

Match the correct one -
TLS Online TPP Program

#Question id: 13116

#Section 3: Genetics, Cellular and Molecular Biology

In chloroplast, the site of coupled oxidation-reduction reactions is the
TLS Online TPP Program

#Question id: 13123

#Section 3: Genetics, Cellular and Molecular Biology

Match the correct one?

A- COPIi- vesicles transport proteins from the ER to the Golgi.
B- COPIIii- vesicles mainly transport proteins in the retrograde direction between Golgi cisternae and from the cis -Golgi back to the ER.
C- Clathriniii- vesicles transport proteins from the plasma membrane (cell surface) and the trans-Golgi network to late endosomes.
TLS Online TPP Program

#Question id: 13153

#General Aptitude

The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is
TLS Online TPP Program

#Question id: 13156

#Section 3: Genetics, Cellular and Molecular Biology

Tay sach;s disease are caused when which enzyme is mutated or non-functional?