1. The nucleus contains chromosomes.

Deoxyribonucleic acid or DNA made up of basic units known as nucleotides.

Nucleotide consists of three components deoxyribose sugar, a nitrogenous base and phosphate group

Meiosis results in four genetically identical daughter cells.

Mitosis is essential for growth, repair, and asexual reproduction

Diagram 1 shows DNA. What is the shape of a DNA molecule?

• A) A straight line
• B) A double helix
• C) A circular loop
• D) A rectangular block

What is the main difference between mitosis and meiosis in terms of their purpose and where they occur?

• A) Mitosis produces identical cells for growth and repair, while meiosis produces genetically non identical cells for reproduction
• B) Mitosis occurs only in reproductive cells, while meiosis occurs in all body cells
• C) Both mitosis and meiosis produce identical daughter cells
• D) Meiosis helps in healing wounds, while mitosis produces reproductive cells

Where does mitosis primarily take place in the human body?

• A) In reproductive cells
• B) In somatic cells
• C) In bacterial cells
• A) Only in brain cells

Diagram 3 shows cell division What is the type of cell Division ?

• A) Mitosis
• B) Binary Fission
• C) Meiosis
• D) Cytokinesis

What is the final result of mitosis?

• A) Four non-identical cells
• B) Two identical daughter cells
• C) One large polyploid cell
• D) A single haploid cell

Diagram 4 shows the stages of mitosis cell division. What is the correct sequence of mitosis?

• A) Prophase → Metaphase → Anaphase → Telophase
• B) Metaphase → Prophase → Telophase → Anaphase
• C) Prophase → Anaphase → Metaphase → Telophase
• D) Anaphase → Prophase → Metaphase → Telophase

How many daughter cells are produced in meiosis?

• A) Two
• B) Four
• C) Eight
• D) One

During which phase of mitosis do the chromosomes align at the center of the cell?

• A) Prophase
• B) Metaphase
• C) Anaphase
• D) Telophase

Which of the following events occurs during anaphase of mitosis?

• A) Chromosomes condense
• B) Sister chromatids are pulled apart to opposite poles
• C) Nuclear membrane disappears
• D) Cytokinesis begins

Which of the following correctly describes a key difference between Meiosis I and Meiosis II?

• A) Homologous chromosomes separate in Meiosis I, while sister chromatids separate in Meiosis II
• B) DNA replication occurs before both Meiosis I and Meiosis II
• C) Meiosis II reduces the chromosome number by half
• D) Crossing over occurs in Meiosis II but not in Meiosis I