Biology Review

Meiosis results in (a)   cells.

Tetrads are found in what phase in meiosis?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I

What are the male sex chromosomes?

• XX

• XY

• XO

• ZZ

What are the female sex chromosomes?

• XX

• XY

• XO

• ZZ

The union of two gametes produces a fertilized (a)   .

A replicated chromosome is made up of two sister (a)   .

A replicated chromosome is made up of two sister (a)   .

An organism has a diploid number of 10. How many chromosomes are present after meiosis?

• 5 chromosomes

• 10 chromosomes

• 20 chromosomes

• None of the above

How many chromosomes does a normal human have?

• 23 pairs

• 46

• 22 pairs

• 44

What phase is this in meiosis where each chromosome pairs with its corresponding homologous chromosome, forms a tetrad (4 chromatids), and crossing over occurs allowing homologous chromosomes to exchange a portion of their chromatids?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I