Question

Extraembryonic membranes in amniotes arise through coordinated folding of embryonic layers and acquire specialized functions during development. Which of the following best explains the functional integration of these membranes during embryogenesis?

Asked in UP PGT (Biology) · 2026
Reproduction in Organisms · Biology
Exam PYQ4 Options
BiologyReproductionReproduction in OrganismsAnimal EmbryologyUP PGT (Biology)2026
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Photosynthesis uses light energy to convert carbon dioxide and water into carbohydrates.

Correct AnswerCorrect option for this question
Option D — The allantois contributes to excretion and respiratory exchange by forming a vascular interface with the chorion, while the amnion provides a fluid-filled protective environment

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Questions Asked from Plant Reproduction: Vegetative, Asexual & Sexual in Previous Exams

See how often Plant Reproduction: Vegetative, Asexual & Sexual has appeared in previous-year questions across major government exams.

High Exam Frequency
15UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2026
9SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
15State PSC Questions Asked in These Years:2002, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Plant Reproduction: Vegetative, Asexual & Sexual has appeared in 46 previous-year exam questions, most frequently in UPSC, State PSC and SSC.
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