Question

meiosis worksheet identifying processes
on the lines provided, order the different stages of meiosis i through meiosis ii,
including interphase in the proper sequence.

1. ____________ homologous chromosome line up in the center of the cell
2. ____________ spindle fibers pull homologous pairs to ends of the cell
3. ____________ 4 haploid (n) daughter cells form
4. ____________ cells undergo a round of dna replication
5. ____________ sister chromatids separate from each other
6. ____________ 2 haploid (n) daughter cells form

short answer questions:
1- how many cells do you end up with at the end of meiosis ii?
2- are the daughter cells (the produced) genetically identical to the parent cell?
explain.
3- comparing and contrasting: describe a similarity and a difference between
meiosis i and meiosis ii.
4- applying concepts: if a diploid cell containing 28 chromosomes undergoes meiosis,
how many chromosomes will each daughter cell have?
5- compare and contrast: how are mitosis and meiosis similar and different?
read each statement, and then on the line write down the phase of mitosis or meiosis that
the action occurs. if the action occurs in both, write both. the first one is done for you.
a- homologous chromosome line up in the center of the cell meiosis i, metaphase i
b- the individual chromosomes move apart. ____________________________
c-spindle fibers pull homologous pairs to ends of the cell __________________________
d- 4 haploid (n) daughter cells form __________________________
e- cells undergo a round of dna replication __________________________

Explanation:

• Ordering stages:
• Interphase is the first stage where cells undergo DNA replication (step 4).
• In meiosis I, homologous chromosomes line up in the center of the cell (metaphase I - step 1), then spindle fibers pull homologous pairs to ends of the cell (anaphase I - step 2), and 2 haploid (N) daughter cells form (telophase I - step 6).
• In meiosis II, sister chromatids separate from each other (anaphase II - step 5), and 4 haploid (N) daughter cells form (telophase II - step 3).
• Short - answer questions:
• Question 1: Meiosis II results in 4 cells.
• Question 2: Daughter cells are not genetically identical to the parent cell. During meiosis, there is crossing - over (in prophase I) and independent assortment (in metaphase I) which introduce genetic variation.
• Question 3: Similarity - Both involve cell division. Difference - Meiosis I has homologous chromosome pairing and separation, while meiosis II is more like mitosis (sister chromatid separation).
• Question 4: A diploid cell (\(2n = 28\)) undergoing meiosis will result in haploid daughter cells (\(n=14\)).
• Question 5: Similarity - Both involve chromosome condensation and spindle formation. Difference - Mitosis results in 2 genetically identical diploid cells, while meiosis results in 4 genetically non - identical haploid cells.
• Phase identification:
• b: Mitosis (anaphase), meiosis II (anaphase II)
• c: Meiosis I (anaphase I)
• d: Meiosis II (telophase II)
• e: Interphase (for both mitosis and meiosis)

Answer:

• Ordering stages: 4, 1, 2, 6, 5, 3
• Short - answer questions:
• 1. 4
• 2. No. Due to crossing - over and independent assortment.
• 3. Similarity: Cell division. Difference: Meiosis I - homologous chromosome separation; Meiosis II - sister chromatid separation.
• 4. 14
• 5. Similarity: Chromosome condensation, spindle formation. Difference: Mitosis - 2 diploid identical cells; Meiosis - 4 haploid non - identical cells.
• Phase identification:
• b. Mitosis (anaphase), meiosis II (anaphase II)
• c. Meiosis I (anaphase I)
• d. Meiosis II (telophase II)
• e. Interphase (for both mitosis and meiosis)