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TLS Online TPP Program

#Question id: 7183

Following graphs (A and B) represents establishment of a maternal gradient in Hunchback protein.

                  

which of the following statements are correct according to graphs?

#Unit 5. Developmental Biology
  1. Graph A shows unfertilized egg, in which maternal hunchback mRNA is present at a relatively low level throughout the egg, whereas nanos mRNA is located posteriorly and Graph B shows fertilized egg, in which nanos mRNA is translated and nanos protein blocks translation of hunchback mRNA in the posterior regions, giving rise to a shallow antero-posterior gradient in maternal Hunchback protein.
  2. Graph A shows fertilized egg, in which nanos mRNA is translated and nanos protein blocks translation of hunchback mRNA in the posterior regions, giving rise to a shallow antero-posterior gradient in maternal Hunchback protein and Graph B shows unfertilized egg, in which maternal hunchback mRNA is present at a relatively low level throughout the egg, whereas nanos mRNA is located posteriorly.
  3. Graph A shows unfertilized egg, in which nanos mRNA is translated and nanos protein blocks translation of hunchback mRNA in the posterior regions, giving rise to a shallow antero-posterior gradient in maternal Hunchback protein and Graph B shows fertilized egg, in which maternal hunchback mRNA is present at a relatively low level throughout the egg, whereas nanos mRNA is located posteriorly.
  4. Graph A and B both shows fertilized egg, in which nanos mRNA is translated and hunchback mRNA is untranslated.
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TLS Online TPP Program

#Question id: 10313

#Unit 6. System Physiology – Plant

Which of the following enzyme are found in the inner membrane of mitochondria?
TLS Online TPP Program

#Question id: 10314

#Unit 6. System Physiology – Plant

How many redox reaction and decarboxylation reaction participate in Kreb’s cycle?
TLS Online TPP Program

#Question id: 10315

#Unit 6. System Physiology – Plant

One of the enzyme of citric acid cycle known as isocitrate dehydrogenase, some of the characterictics are given below;

a) Isocitrate dehydrogenase is found in both cytosol as well as in mitochondria

b) Isocitrate is oxidized by hydride transfer to NAD+ or NADP+ depending on the location whether IDH present in cytosol or mitochondria

c) Isocitrate dehydrogenase forms oncometabolites such as 2-Oxoglutarate

d) Isocitrate dehydrogenase also participate in Glyoxylate cycle

Which of the following characteristics of isocitrate dehydrogenase is incorrect?
TLS Online TPP Program

#Question id: 10316

#Unit 6. System Physiology – Plant

Succinate dehydrogenase an enzyme is inhibited by  Malonate and Oxaloacetate, which of the following graph represents the correct competitve inhibition  of enzyme with these inhibitors?   
TLS Online TPP Program

#Question id: 10317

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following are receptors for cholera toxin?
TLS Online TPP Program

#Question id: 10318

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following phospholipase generates lysophospholipids?