Mitosis is a type of cell division in eukaryotic organisms, resulting in two identical daughter cells. It plays a crucial role in growth, development, and tissue repair. Mitosis consists of stages: prophase, metaphase, anaphase, and telophase, ensuring accurate distribution of chromosomes. This is an MCQ on Mitosis. | Cell and Molecular Biology Notes | Cell … Read more
Meiosis is a type of cell division that produces gametes (sperm and egg cells) in sexually reproducing organisms. It involves two rounds of division, resulting in four daughter cells with half the chromosome number of the parent cell, enabling genetic diversity. This is an MCQ on Meiosis. | Cell and Molecular Biology Notes | Cell … Read more
Chromosomes are thread-like structures found in the nucleus of eukaryotic cells. They consist of DNA tightly coiled around histone proteins. Chromosomes carry genetic information in the form of genes and are essential for cell division, reproduction, and inheritance. Humans typically have 23 pairs of chromosomes, totaling 46 chromosomes in each cell. This is an MCQ … Read more
Histone proteins are highly alkaline proteins found in eukaryotic cell nuclei. They form the core around which DNA wraps to form nucleosomes, the basic units of chromatin. Histones play crucial roles in DNA packaging, gene regulation, and epigenetic modifications, influencing gene expression and cellular processes within the nucleus. This is an MCQ on Histone Proteins: … Read more
The rough endoplasmic reticulum (RER) is a cellular organelle characterized by its studded appearance due to ribosomes attached to its surface. It plays a vital role in protein synthesis, folding, and transport, contributing significantly to the endomembrane system’s functions within eukaryotic cells. This is an MCQ on Rough Endoplasmic Reticulum Structure and Functions. | Cell … Read more