Practice Questions

TLS Online TPP Program

#Question id: 101

You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?

#SCPH06 I Botany

Test both for solubility in water. Sucrose is very soluble; lactose is only minimally soluble.
Test for the ability to reduce Ag+. Only lactose will react.
Dissolve each in water and record the pH. Lactose is far more acidic than sucrose.
React each with bromine (Br2) water. Only sucrose will react.

More Questions

TLS Online TPP Program

#Question id: 22955

#SCPH01 Biochemistry

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class A activity ?

TLS Online TPP Program

#Question id: 22955

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

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class A activity ?

TLS Online TPP Program

#Question id: 22955

#SCPH06 I Botany

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class A activity ?

TLS Online TPP Program

#Question id: 22955

#SCPH28 | Zoology

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class A activity ?

TLS Online TPP Program

#Question id: 22956

#SCPH01 Biochemistry

Individual and overlapping expression of homeotic genes in adjacent whorl of a flower determine the pattern of floral organ development. In an Arabidopsis mutant, floral organs are distributed as follows

Loss of function mutation in which one of the following genes would have caused the above pattern of floral organs development

TLS Online TPP Program

#Question id: 22956

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

Individual and overlapping expression of homeotic genes in adjacent whorl of a flower determine the pattern of floral organ development. In an Arabidopsis mutant, floral organs are distributed as follows

Loss of function mutation in which one of the following genes would have caused the above pattern of floral organs development