MEIOSIS

What phase is this?

• Metaphase I

• Prophase II

• Telophase I

• Anaphase II

Which of the following is the best definition for MEIOSIS?

• the process of two haploid cells uniting

• the counting of chromosomes within a diploid cell

• a two-step process that reduces the number of chromosomes in half such that there is only one copy of all the chromosomes

• the equational division of a cell into two identical copies

In which stage of MEIOSIS does crossing over occur? (The exchange of genetic material between chromosomes in a tetrad.)

• Anaphase I

• Metaphase I

• Prophase I

• Telophase I

What phase is this?

• Prophase I

• Metaphase I

• Metaphase II

• Prophase II

How many cells are formed at the end of Meiosis II?

• 2

• 3

• 4

• 8

What phase is this?

• Metaphase II

• Prophase II

• Telophase I

• Anaphase I

At the start of Meiosis II, which of the following is NOT true?

• There are two cells.

• The cells are haploid.

• The chromosomes are paired up as homologues.

• DNA is present as two sister chromatids joined at the centromere.

What phase is this?

• Metaphase II

• Prophase I

• Telophase I

• Anaphase I

What phase is this?

• Prophase II

• Telophase II

• Telophase I

• Prophase I

In humans, the haploid number of chromosomes is ____.

• 23

• 46

• 69

• 92