Meiosis

Question 1

What is Meiosis?

Answer 1

A Cell division process that results in four haploid cells with half the original amount of genetic information

Question 2

What are the three steps of Meiosis?

Answer 2

1. Interphase
2. Meiosis I
3. Meiosis II

Question 2

What is Interphase?

Answer 2

The step that precedes Meiosis, split into three phases with them being the G1 Phase (Which enables Cell Growth), S Phase (Which replicates DNA), and the G2 Phase (Which are the final preparations for Meiosis)

Question 2

What is Meiosis I?

Answer 2

The first step of Meiosis
1. Interphase I ~ 1st source of genetic variation
2. Prometaphase I ~ Homologous chromosomes are held together at chiasmata & microtubules attach to kinetochores
3. Metaphase I ~ Homologous chromosomes align at center of cell, 2nd source of genetic variation
4. Anaphase I ~ Homologous chromosomes move into other ends of Cell, elongating it
5. Telophase I ~ Cytoplasm starts dividing
6. Cytokinesis I ~ Two Haploid Cells

Question 3

What are Somatic Cells?

Answer 3

Cells that aren’t germ cells

Question 4

What’s a Karyotype?

Answer 4

An organisms number and appearance of chromosomes

Question 5

What is Nondisjunction?

Answer 5

Failed separation of Cells during Meiosis

Question 6

What is Monosomy & Trisomy?

Answer 6

Monosomy: Loss of Chromosome
Trisomy: Gained an extra Chromosome