Life Sciences
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XL 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 73–75 of 122. Imported answers require review unless explicitly marked reviewed.
Question 73
Open questionXL-SMSQ1 markNeeds review
Which of the following sites is/are the location(s) of ATP generation through oxidative phosphorylation in Escherichia coli?
Your answerSelect all correct options. You can choose more than one.
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Open questionXL-SMCQ2 marksNeeds review
The adaptive immune response in an animal involves the generation of antibodies against an invading bacterial pathogen. The following graph presents antibody titer levels in an animal exposed twice to the pathogen.
Which one of the following options correctly pairs antibodies to peak I and peak II in the graph?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 75
Open questionXL-SMCQ2 marksNeeds review
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?
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