List of top Life Science Questions asked in GATE Life Sciences

The \( F_{121} \) value of a known microorganism with \( Z \) value of \( 11^\circ C \) is 2.4 min for 99.9999% inactivation. For a 12D inactivation of the said microorganism at \( 143^\circ C \), the \( F \) value (in min) is .......... (rounded off to 3 decimal places)

Match the following enzymes in Column I with their applications in Column II.

Match the molecules in Column-I with their correct property/function in Column-II

Match the following human diseases in Column-I with their causal organism in Column-II

Match the molecules in Column-I with their properties/functions mentioned in Column-II

Which option(s) correctly match(es) the Antibiotic with their corresponding Target?

A culture of lac Escherichia coli is grown in a medium lacking lactose or any other \(\beta\)-galactoside. The response of the lac operon upon induction by lactose can be monitored by measuring the levels of lac mRNA, \(\beta\)-galactosidase enzyme and permease enzyme. Which one of the following profiles correctly captures the on-off response to lactose?}

Correctly match the viruses listed in Column I with the nature of their corresponding genetic materials listed in Column II:

Carl Woese established that short subunit rRNA sequences can be used to reveal evolutionary relationships between various organisms. Based on this, which one of the following options is the established phylogenetic arrangement of the three domains of life?

Which of the following sites is/are the location(s) of ATP generation through oxidative phosphorylation in Escherichia coli?
 

The origin of the Escherichia coli chromosome on the genetic map is shown below.
Bidirectional replication is a feature of this system and both replication forks move at the same rate. Which one of the following sequences of replication of the genes is correct?

If rabbits are introduced in an isolated grassland for the first time, which of the following growth curves (shown using dashed line) is/are theoretically possible population dynamics over time?

Correctly match the following Arabidopsis genes (Group I) and the biological processes they primarily regulate (Group II):

The following table summarizes the flowering time behavior (days to flower) and the transcript levels in four genotypes of a plant species.

Which one of the following genetic pathways best explains the observations shown in the table?
 

Correctly match the photosynthetic pathways (Group I) with their first stable products (Group II) in respective plants (Group III):