Meiosis

What stage of meiosis has sister chromatids separating?

• Prophase I

• Anaphase I

• Anaphase II

• Metaphase I

There are two forms of genetic variation in meiosis, which occurs in Metaphase I?

• Independent Assortment

• Crossing over

• Homologous chromosomes join together

• Haploid cells are formed

What is false about Interphase?

• It is when DNA is replicated

• It is the same process that occurs for mitosis

• It occurs twice during meiosis

• It occurs once before meiosis

What is true of homologous chromosomes?

• There are usually three homologous chromosomes for each type

• Homologous chromosomes are separated during Metaphase II

• They have same genes located at different locations

• Chromosomes that come one from each parent; contain same genes in same location

What are gametes?

A) are haploid

B) are diploid

C) produce sex cells

D) are somatic cells

• A and D

• B and C

• A and C

• B and D

What event is occurring during Prophase I

• Sister chromatids are joined together

• spindle fibers disappear

• Nuclear membrane reforms

• Homologous chromosomes join forming a tetrad

How many cells are created at the end of Telophase I and what type of cells are they?

• 2- haploid

• 2-diploid

• 4-haploid

• 4- diploid

Which of these statements are True?

1. crossing over produces recombinant DNA

2. crossing over occurs in prophase I

3. crossing over occurs in prophase II

4. crossing over occurs in prophase of mitosis

• 2 only

• 2 and 3

• 1 and 4

• 1 and 2

In meiosis, in order to create haploid gametes how often is the cell divided

• only once

• twice

• three times

• not necessary to divide cells as they are haploid to begin with

Which of the following cells are haploid? ( choose 2)

• liver cell

• stomach cell

• sperm cell

• egg cell