Genetic Variation and Meiosis Explanation Practice
Answer the following questions using evidence and vocabulary from the lesson. Consider how the processes of meiosis contribute to genetic variation and the differences observed in offspring.
Question 1
Why is independent assortment important for ensuring each sex cell resulting from meiosis is unique? Think about our driving question - how could this process contribute to offspring having different traits?
Some different chromosome combinations resulting from various arrangements of parent chromosomes during Metaphase I in meiosis.
Question 2
What is crossing over and why is it important for ensuring each sex cell resulting from meiosis is unique? Think about our driving question - how could this process contribute to offspring having different traits?
Homologous chromosomes are shown going through the process of crossing over.
Question 3
Why do full biological siblings look different from each other even though they share the same parents?
Make sure to use evidence and vocabulary. Vocabulary: Meiosis, Crossing Over, Independent Assortment, Gamete/Sex Cell, Fertilization (include chromosome counts), Genetic Variation, DNA Replication (in relation to cell division & genetic variation).
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