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Biology Guess Paper 2022 Punjab Board 12th Class
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“Remember that the 12th Class Guess Paper of pure study changes every year. Paper is made according to a new schedule every year. Therefore, this schedule is for 2022 only. This page will be updated next year in 2023. “
Punjab Board twelfth Class Biology Guess Paper 2022
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twelfth Class Biology Guess Paper 2022 Punjab Board
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Second-grade biology (rate paper) Important question
- What is lithotripsy?
- Distinguish between hypotonic and hypertonic environments. Defines homeostasis. Give that meaning
- Distinguish between hemodialysis and peritoneal dialysis
- What is Sciatica?
- Draw and label the urea cycle
- Name different types of cells associated with bone.
- How is parthenogenesis different from parthenogenesis?
- Distinguish between identical and dizygotic twins
- What does open growth mean? How is the notochord formed in chick embryos?
- Enlist nonsense codons and their function. What is the importance of mitosis and meiosis? Describe changes occurring during G1phase. What is MODY? Distinguish between autosomal and sex chromosomes. Define fossils. Where are most fossils?
- Define food chains and webs
- Defining the biosphere and ecosystem
- What kind of creatures are there in the depths of the lake? Provides a location for Pakistan’s tundra ecosystem.
- Differentiate between renewable and nonrenewable resources. Define soil and give its basic constituents. Define the greenhouse effect.
- Describe abuses of land. Why are trees called environmental buffers? Write the name of the theories of evolution presented by Lamarck and Darwin.
- Differentiate between Exvivo and Invivo gene therapy. How does ABO incompatibility protect the developing baby against Rh incompatibility? What is the role of blood groups in establishing parentage? Long Questions
- Describe the excretion in plants.
- Elaborate Sliding Filament Model of muscle contraction? What does it explain? Describe the Watson-Crick Model of DNA in detail. Write a note on deforestation and afforestation
- the nervous system of Hydra and Planaria
- What is incomplete dominance? Explain it with an example
- What is aging? Describe its causes and symptoms.
- Write a note on test tube babies. Give a comprehensive comparison between asexual and sexual reproduction. Define Mendel`s law of Independent Assortment. Explain it with an example
- Write any four differences between nervous and chemical coordination
- Describe types of chromosomes on the basis of centromere
- Write a note on the nitrogen cycle.
- Describe the evidence of evolution from Biogeography and fossil record.
- Explain the ABO blood group system.