In the plants, due to mutation in the mitochondrial genome causing cytoplasmic male sterility can be influenced by the nuclear gene (Rf),  which is dominant over the cytoplasmic mitochondrial genome. If a male sterile plant  is pollinated by the fertile male plant with homozygous (Rf)condition, the progeny obtained in F1 will have

TLS Online TPP Program

#Question id: 32718

#Unit 1. Molecules and their Interaction Relevant to Biology

When enzyme solutions are heated, there is a progressive loss of catalytic activity over time due to denaturation of the enzyme. A solution of the enzyme hexokinase incubated at 45oC lost 50% of its activity in 12 min, but when incubated at 45oC in the presence of a very large concentration of one of its substrates, it lost only 3% of its activity in 12 min. What is correct explanation

TLS Online TPP Program

#Question id: 33103

#Unit 1. Molecules and their Interaction Relevant to Biology

In the given figure 

TLS Online TPP Program

#Question id: 33104

#Unit 1. Molecules and their Interaction Relevant to Biology

What can be best concluded from the given figure

TLS Online TPP Program

#Question id: 33105

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of following statement is/are correct

A. Some weak interactions are formed in the ES complex, 

B. Full complement of such interactions between substrate and enzyme is formed only when the substrate reaches the transition state.

C. Induced fit model best explains binding of substrate in transition state

D. Binding energy concept of catalysed reaction is best suits to induced fit model

TLS Online TPP Program

#Question id: 33106

#Unit 1. Molecules and their Interaction Relevant to Biology

Specificity of an enzymes solely depends on

TLS Online TPP Program

#Question id: 33107

#Unit 1. Molecules and their Interaction Relevant to Biology

Figure given best describes