Let’s say this shows meiosis in a mom’s ovary cells. Interphase in which chromosomes are copied already occurred. The red chromosomes represent grandmas DNA, and the blue chromosomes represent grandpa’s DNA. Figures 1 and 2 show Meiosis with crossing over (which does happen) and without it (which never happens). Figure 3 is a key so you know what the genes N, S, R and W code for.
4 points
4
Question 2
2.
In meiosis WITH crossing over (figure 1), select all of the following gene combinations that are possible in the gamete cells produced.
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4
Question 3
3.
In meiosis WITHOUT crossing over (figure 2), select all of the following gene combinations that are possible in the gamete cells produced.
4 points
4
Question 4
4.
Based off your answers to questions 2 and 3, which of the following is TRUE.
4 points
4
Question 5
5.
Explain why genetic variation is beneficial to a species. Use evidence from the image below to strengthen your answer.
4 points
4
Question 6
6.
Random assortment is shown below. Select the proper description of this event which increases genetic variation in gametes.
4 points
4
Question 7
7.
Below you can see 4 egg cells produced in a female ovary, and 4 sperm cells produced in a male testes. From here what may occur?
