11 4 Meiosis Answer Key

Question: List the two things that Mendel’s principles of genetics required in order to be true.

Answer: #1. Each organism must inherit a single copy of every gene from both its “parents”

#2. When organism produces own gametes, the 2 sets of genes must be separated from each other.

Question: What does it mean when 2 sets of chromosomes are homologous?

Answer: each chromosome that came from the male has a corresponding chromosome from the female.

Question: How do you describe a diploid cell?

Answer: #1. 2n

#2. contains 2 sets of homologous chromosomes

Question: What’s the number of chromosomes in a haploid drosophila cell?

Answer: 4

Question: Look at pictures in packet

Answer: !

Question: why is meiosis described as a process of reduction division?

Answer: the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell.

Question: What are the 2 distinct stages of meiosis?

Answer: #1. Meiosis I (produces diploid cells)

#2. Meiosis II (Produces haploid cells)

Question: The diploid cell that enters meiosis becomes how many haploid cells at the end of meiosis?

Answer: 4

Question: How does a tetrad form in prophase I of meiosis?

Answer: each chromosome pairs with its corresponding homologous chromosome

Question: how many chromatids in a tetrad?

Answer: 4