For the reaction A -> B, DG'° = –60 kJ/mol.  The reaction is started with 10 mmol of A; no B is initially present.  After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?

TLS Online TPP Program

#Question id: 1671

#I Life Science/ Life Sciences Group – I-V

A chromosome on which T-cell receptor α chain gene rearrangement has occurred lacks which of the following gene segments?

TLS Online TPP Program

#Question id: 13106

#SCPH06 I Botany

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.

 

 

Why is it that some people only have one band?

TLS Online TPP Program

#Question id: 11384

#SCPH06 I Botany

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

TLS Online TPP Program

#Question id: 10186

#SCPH05 I Biotechnology

Arrange the subatomic particle in order of increasing mass

TLS Online TPP Program

#Question id: 23244

#SCPH01 Biochemistry

At which position does this piperidine cleaves?