Fig. 6.1 shows a plant cell in a stage of mitosis. Fig. 6.1 Name the stage of mitosis shown in Fig. 6.1. .........................................................................................................................................

Biology

IGCSE&ALevel

CAIE

Exam No：9700_w24_qp_21 Year：2024 Question No：6(b)

Answer:

5.1.1.1 DNA

5.1.1.2 histone proteins

5.1.1.3 sister chromatids

5.1.1.4 centromere

5.1.1.5 telomeres

5.1.2.1 growth of multicellular organisms

5.1.2.2 replacement of damaged or dead cells

5.1.2.3 repair of tissues by cell replacement

5.1.2.4 asexual reproduction

5.1.3.1 interphase (growth in G1 and G2 phases and DNA replication in S phase)

5.1.3.2 mitosis

5.1.3.3 cytokinesis

5.1.4 outline the role of telomeres in preventing the loss of genes from the ends of chromosomes during DNA replication

5.1.5 outline the role of stem cells in cell replacement and tissue repair by mitosis

5.1.6 explain how uncontrolled cell division can result in the formation of a tumour