TLS Online TPP Program

#Question id: 27501


Which of the following statements regarding the reducing ability of a sugar is wrong?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. The aldehyde group of a saccharide is responsible for its reducing properties.

  2. Ketoses are not reducing sugars because they are not aldehydes.

  3. D-Glucose in predominantly in a cyclic hemiacetal form but it is a reducing sugar through the acyclic form with which the hemiacetal is in equilibrium.

  4. A methyl glucoside is not a reducing sugar.
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TLS Online TPP Program

#Question id: 10587

#Unit 10. Ecological Principles

The above pyramid 


Which of the following is not representation of following ecosystem?

TLS Online TPP Program

#Question id: 5734

#Unit 8. Inheritance Biology

Following is heterozygote for inversion?

Following some statement given for above abnormality?

A) There is a less probability of a crossover occurring within inversion region and producing an enviable cross over meiotic product.

B) Chromosomes that have engaged in crossing-over separate in the normal fashion, without the creation of a bridge

C) The crossover produces chromatids that contain duplication and a deletion for different parts of the chromosome results non viable gamete

D) Double cross over within inversion loop will be results all viable gamete of parental and recombinant

TLS Online TPP Program

#Question id: 23781

#Unit 7. System Physiology – Animal

Rhodopsin is comprised of 
a. An ketone of vitamin A
b. Opsin protein (GPCR)
c. An aldehyde of vitamin A
d. Retinal

TLS Online TPP Program

#Question id: 14976

#Unit 2. Cellular Organization

Plasmids are not required for host growth and reproduction, although they may carry genes that give their bacterial host a selective advantage. Plasmid genes can render  bacteria 
1. Drug-resistant 
2. Give new metabolic abilities 
3. Make them pathogenic

Which among the following combinations is correct?

TLS Online TPP Program

#Question id: 2653

#Unit 2. Cellular Organization

The sequence of the structural genes in the lac operon is