Cellular Division, Emphasis Meiosis

Unlike mitosis, meiosis in mammals results in the formation of

• one haploid gamete

• three diploid gametes

• four diploid gametes

• four haploid gametes

If the Diploid number of Carrots is 18, the haploid number is

• 18
• 9
• 27
• 36

Name the growth phase of the cell cycle for both Mitosis and Meiosis.

• metaphase

• telophase

• interphase

• anaphase

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids
• condensation and segregation of alleles
• mutationin which the DNA content of the gene is altered
• crossing - over in which alleles are exchanged

Why do we need meiosis?

• To double the number of chromosomes going into sex cells.

• To halve the number of chromosomes going into sex cells.

• To triple the number of chromosomes going into sex cells.

• To keep the number of chromosomes going into sex cells the same.

Human eggs and sperm are _____, and each has ____ chromosomes.

• diploid, 23
• diploid, 46
• haploid, 23
• haploid, 46

How are your chromosomes inherited?

• most of your chromosomes from your mother
• most of your chromosomes from your father
• a random number of chromosomes from each parent
• half your chromosomes from your mother and half from your father.

What phase of meiosis is shown?

• metaphase 1

• metaphase 2

• anaphase 1

• anaphase 2

Diploid means:

• N (one copy of each chromosome).

• 2N (two copies of each chromosome).

• 3N (3 copies of each chromosome).

• 4N (4 copies of each chromosome).

What are chromosomes?

• Carbohydrates and lipids for cellular processes that require energy.

• Lipids and proteins that protect the cell from viruses and bacteria.

• Tightly packed DNA wrapped around protein that is visible during cell division.

• DNA and carbohydrates used to make lipids.