TLS Online TPP Program

#Question id: 134


Ultraviolet (UV) light can be used to estimate protein solution concentrations because

#Zoology
  1. phenylalanine absorbs at 260 nm.

  2. all the amino acids absorb UV light.

  3. aromatic amino acids absorb at 280 nm.

  4. tryptophan and tyrosine absorb at 280 nm.

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TLS Online TPP Program

#Question id: 2819

#Botany

A typical eukaryotic gene consists of which of the following elements?

a. internal ribosome binding sites       b. introns         c. exons            d. enhancers

TLS Online TPP Program

#Question id: 2824

#Botany

Plant mitochondrial DNA

a. is the same size as human mitochondrial DNA.

b. encodes a 5S mitochondrial rRNA.

c. contains multiple copies that recombine with each other.

d. uses the standard genetic code.

TLS Online TPP Program

#Question id: 2825

#Botany

Metaphase chromosomes can be identified

a. by shape.                 

b. by the size and number of introns.

c. by banding patterns with Giemsa reagent.

d. by chromosome painting.

TLS Online TPP Program

#Question id: 10337

#Botany

In biological nitrogen fixation, the process of nitrification by organism respective bacteria A--which convert the ammonia to nitrite and B--- further converted into nitrate in the soil by their respective A and B bacteria known as;

TLS Online TPP Program

#Question id: 10339

#Botany

Nitrate assimilates into the root where the conversion of nitrate to nitrite in the cytosol, a reduction reaction that involves the transfer of two electrons catalyzes by an enzyme that is NAD(P)H dependent is known as

TLS Online TPP Program

#Question id: 10343

#Botany

In many plants, nitrate is assimilated in the root as well as in the shoot according to their native place. Some of the given statements about nitrate assimilation;

a) If plants native to temperate region assimilate NO3- at root

b) If plants native to temperate region assimilate NO3- at shoot

c) Plants native to tropical or subtropical region assimilate NO3- at root

d) Plants native to tropical or subtropical region assimilate NO3- at shoot

Which of the following combination from above statements is correct?