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The G0 phase is a resting phase where the cell exits the normal cycle and stops dividing. Cells in the G0 phase are metabolically active but do not undergo mitosis. Some cells remain in G0 for an extended period, such as neurons, while others may re-enter the cycle when needed. Related Questions: Give the modifications … Read more
Crossing over is the process where homologous chromosomes exchange genetic material during prophase I of meiosis. This exchange leads to genetic recombination, resulting in offspring with a mixture of genetic traits from both parents. This process enhances genetic diversity. Related Questions: Give the modifications of epidermal cells for: Explain the spindle in detail. Which organelles … Read more
The spindle is a structure made of microtubules that forms during cell division. It helps in the movement of chromosomes. The spindle fibers extend from the centrosomes and attach to the centromeres of chromosomes. The role of the spindle is to ensure that the chromosomes are aligned properly during metaphase and are then separated into … Read more
a. Exchange of gases – Stomata in the epidermis of leaves allow gas exchange. Guard cells regulate the opening and closing of stomata. b. Absorption of water and minerals – Root hair cells have elongated structures to increase surface area for better absorption of water and minerals from the soil. Related Questions: The science of … Read more