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BLG1501 Assignment 2 (COMPLETE ANSWERS) Semester 1 2025 (225234) - DUE 11 April 2025

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BLG1501 Assignment 2 (COMPLETE ANSWERS) Semester 1 2025 (225234) - DUE 11 April 2025; 100% TRUSTED Complete, trusted solutions and explanations. For assistance, Whats-App 0.6.7-1.7.1-1.7.3.9. Ensure your success with us. ... Question 1 [20] 1.1 Write explanatory notes on the greenhouse effect. (7) 1.2 Distinguish between hypertonic, hypotonic, and isotonic solutions. (6) 1.3 Explain how edges and corridors can strongly influence landscape biodiversity. (7) Question 2 [28] 2.1 Compare in tabulated form the processes of fermentation and cellular respiration. (10) 2.2 Tabulate the key differences between mitosis and meiosis. (12) 2.3 Define predation, herbivory and parasitism. (6) Question 3 [32] 3.1 In sesame plants, the one-pod condition (P) is dominant to the three-pod condition (p). Normal leaf (L) is dominant to wrinkled leaf (l). A homozygote in one-pod condition and normal leaves are crossed with a homozygote in three-pod condition and wrinkled leaves. Use a Punnett square to predict the phenotypic and genotypic ratios of the F2 generation. (20) 3.2 List the four major threats to biodiversity and give an example of each. (12) Question 4 [20] 4.1 Explain the difference between cytokinesis in plant and animal cells. (6) 4.2 Distinguish between asexual and sexual reproduction. (4) 4.3 Explain the general process of transcription, including the three major steps of initiation, elongation and termination. (10)

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BLG1501
Assignment 2 Semester 1 2025
Detailed Solutions, References & Explanations

Unique number: 225234

Due Date: 11 April 2025 @11pm
QUESTION 1



1.1



The greenhouse effect is a natural process that warms the Earth's surface. It occurs when the
sun's energy reaches the Earth in the form of sunlight, which is absorbed by the surface and
then radiated back into the atmosphere as heat. Some of this heat is trapped by gases in the
atmosphere known as greenhouse gases, which include carbon dioxide (CO2), methane
(CH4), water vapor (H2O), nitrous oxide (N2O), and ozone (O3). These gases allow sunlight
to enter the atmosphere but prevent the heat from escaping back into space. As a result, the
Earth's temperature rises, maintaining conditions suitable for life.



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