3) Fruit flies are commonly used by scientists studying DNA. They have a diploid number of 8 total chromosomes. Using the colored pencils or different textured lines (one color to show chromosomes from mom, one color to show chromosomes from dad, or dot and dashes for example), draw how chromosomes are aligned during the phases below. Label the following (a,b, and c) at least once in any of the 3 cells, and check off these boxes once you have labeled each on a diagram: a) Sister Chromatids b) Homologous Chromosomes c) One Crossing-Over event d) Draw One Allele per chromosome (as shown in applies learning - This should clearly show sister chromatids and use to answer the questions below explaining how diversity increases due to meiosis): a. (Hint: Review Question 15 on Applied Learning Diagram is turned on its side:O

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Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.