1 Which of the following is a characteristic of cancer cells? A Controlled cell division B Metastasis C Normal cell cycle checkpoints D Limited growth
2 In which phase of the cell cycle does the cell grow and carry out normal functions? A G1 phase B S phase C G2 phase D M phase
3 What forms during cytokinesis in plant cells? A Cleavage furrow B Cell plate C Spindle fibers D Contractile ring
4 What is the main significance of mitosis? A Production of gametes B Genetic diversity C Growth and repair D Reduction of chromosome number
5 During which phase of meiosis do homologous chromosomes separate? A Anaphase I B Anaphase II C Metaphase I D Telophase I
6 Which of the following is a difference between mitosis and meiosis? A Mitosis produces four cells, meiosis produces two B Mitosis occurs in gametes, meiosis in somatic cells C Mitosis produces identical cells, meiosis produces varied cells D Mitosis reduces chromosome number, meiosis maintains it
7 During which stage of meiosis do homologous chromosomes separate? A Anaphase I B Anaphase II C Metaphase I D Metaphase II
10 Which of the following is an example of a permanent cell cycle exit? A Liver cells B Neurons C Skin cells D Stem cells
11 Which of the following is a significance of mitosis? A Production of gametes B Genetic diversity C Growth and repair of tissues D Reduction of chromosome number
13 Which of the following is a significant role of mitosis in multicellular organisms? A Production of gametes B Genetic diversity C Growth and repair of tissues D Reduction of chromosome number
14 Which type of tumor is cancerous and can spread to other parts of the body? A Benign tumor B Malignant tumor C Metastatic tumor D Both B and C
15 What is the main significance of meiosis? A It produces identical daughter cells for growth B It reduces chromosome number and creates genetic diversity C It repairs damaged tissues D It replicates DNA during interphase
16 What is the term for the spread of cancer cells from one part of the body to another? A Metastasis B Benign tumor C Malignant tumor D Carcinogenesis
17 Which phase of the cell cycle is a temporary exit where cells perform normal functions but do not prepare for division? A G0 phase B G1 phase C S phase D G2 phase
18 Which phase of mitosis involves the separation of sister chromatids and their movement to opposite poles? A Prophase B Metaphase C Anaphase D Telophase
19 What is a tetrad? A A pair of homologous chromosomes B A group of four chromatids C A structure formed during cytokinesis D A type of tumor
20 What is the main difference between mitosis and meiosis? A Mitosis produces four daughter cells, meiosis produces two B Mitosis produces two identical diploid cells, meiosis produces four genetically diverse haploid cells C Mitosis occurs in germ cells, meiosis in somatic cells D Mitosis involves crossing over, meiosis does not
21 During which phase of the cell cycle does DNA replication take place? A G1 Phase B S Phase C G2 Phase D M Phase
23 During which phase of the cell cycle does DNA replication occur? A G1 phase B S phase C G2 phase D M phase
24 Which of the following is a key difference between mitosis and meiosis? A Mitosis produces haploid cells, meiosis produces diploid cells B Mitosis involves one division, meiosis involves two divisions C Mitosis occurs only in germline cells, meiosis occurs in somatic cells D Mitosis results in genetic diversity, meiosis does not
25 What is the main event of anaphase in mitosis? A Chromosomes line up at the metaphase plate B Sister chromatids separate and move to opposite poles C Nuclear envelope reforms D Chromosomes condense