TLS Online TPP Program

#Question id: 346


The partial negative charge in a molecule of water occurs because ________.

#Section 2: General Biology
  1. the oxygen atom donates an electron to each of the hydrogen atoms

  2. the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus

  3. the oxygen atom has two pairs of electrons in its valence shell that are not neutralized by hydrogen atoms

  4. one of the hydrogen atoms donates an electron to the oxygen atom

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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?