BIOL133 Week 11 Lab Assignment 7 - Meiosis; Exercise

Course : American Public
Contributed : May Anderson
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  • BIOL133 Week 11 Lab Assignment 7 - Meiosis; Exercise

Exploration

 

Which round of meiosis results in two haploid cells from one diploid parent cell?

 

Exercise 1

 

  1. How did crossing over affect the genetic content in the gametes? Use your results to support your answer.
  2. What is the ploidy of the daughter cells at the end of meiosis I? What about at the end of meiosis II?
  3. List two differences between meiosis I and meiosis II.
  4. Based on your observations in the digital exercise, what can you conclude about the severity of nondisjunction that occurs in meiosis I as opposed to meiosis II?
  5. Why is it necessary to reduce the number of chromosomes in the formation of gametes, but not in somatic cells?
  6. Blue whales have 44 chromosomes in every cell. How many chromosomes you would expect to find in the following:

 

Photo 1: Meiosis I Stage Identification Results

Photo 2: Meiosis II Stage Identification Results

Photo 3: Results for Parts 2, 3, and 4

 

Competency Review

 

  1. Which of the following statements is NOT true?
  2. What is the evolutionary outcome of crossing over?

What distinguishes Meiosis I from

 

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