2. Meiosis

Question 1

What is meiosis?

Answer 1

production of haploid cells from a diploid cell that reduces the number of copies of each chromosome from two to one

Question 2

What are the two main similiarities between meiosis and mitosis?

Answer 2

1. both are preceded by one round of genome replication
2. different phases are referred to by the same names

Question 3

What are the two main differences between meiosis and mitosis?

Answer 3

1. mitosis is replication of genome followed by one round of division while meiosis is two rounds of division
2. in meiosis, recombination occurs between homologous chromosomes

Question 4

What occurs during prophase I?

Answer 4

synapsis

Question 5

What is synapsis?

Answer 5

homologous chromosomes pair together

Question 6

What regulates synapsis?

Answer 6

synaptonemal complex (SC)

Question 7

What occurs during metaphase I?

Answer 7

tetrads align along the metaphase plate occurs

Question 8

What occurs during anaphase I?

Answer 8

homologous chromosomes separate

Question 9

What occurs during telophase I?

Answer 9

cell divides into two

Question 10

What is nondisjunction?

Answer 10

failure of homologous chromosomes or sister chromatids to separate correctly during meiosis