Meiosis Worksheet

Place the stages of Meiosis 1 in order

• cells undergo a round of DNA replication

• Spindle fibers begin to attach to homologous chromosome pairs

• Crossover (if any) occurs

• homologous chromosomes line up in the center of the cell

• spindle fibers pull homologous pairs to ends of the cell

Place the stages of Meiosis II in order

• chromosomes line up single file in the middle of the cell

• chromosomes coil in two daughter cells while nucleus membrane breaks down

• 4 haploid (N) daughter cells are formed

• sister chromatids move to opposite ends of the cell

• nuclear membrane reforms and chromosomes uncoil

If a diploid cell containing 28 chromosomes undergoes meiosis, how many chromosomes will each daughter cell have?

• 28

• 14

• 56

Match the statement with whether it occurs in meiosis, meiosis I and mitosis, or Meiosis II and mitosis

Groups:

(a) Meiosis

,

(b) Both Meiosis I and Mitosis

,

(c) Both Meiosis II and Mitosis

• individual chromatids move to each end of the cell

• cells undergo a round of DNA replication

• spindle fibers pull homologous pairs to ends of the cells

• homologous chromosomes line up in the center of the cell

• Sister chromatids separate into individual chromosomes

• The chromosomes line up across the middle of the cell

• crossing

  -over (if any) occurs

• 4 haploid (N) daughter cells form

• sister chromatids separate from each other

• the individual chromosomes move apart

• spindle fibers attach to the homologous chromosome pairs

• 2 haploid (N) daughter cells form

Drag the label for the phase to the correct area on the image

a

b

d

e

f

g

h

c

telophase I

telophase II

Metaphase I

metaphase II

prophase I

Prophase II

Anaphase II

anaphase I

During which phase of the meiotic cell cycle does DNA replication occur?

• interphase

• prophase

• metaphase

• anaphase

• telophase

When does crossover take place in meiosis?

• interphase

• metaphase

• prophase

• anaphase

• telophase

During which phase of meiosis does the nuclear membrane reform around chromosomes?

• interphase

• prophase I

• metaphase II

• anaphase I

• telophase II

A human cell containing 22 autosomes and a Y chromosome is...

• a somatic cell of a male

• a zygote

• a somatic cell of a female

• a sperm cell

• an ovum

Homologous chromosomes move towards opposite poles of a dividing cell during...

• mitosis

• meiosis I

• meiosis II

• fertilization