A karyotype shows the shape, relative sizes and general structures of an organism's chromosomes. This technique, which uses special dyes and microscopes to view the chromosomes, is very useful for detecting large mutatio... More » Science Biology Cells

The threadlike structures found in a nucleus are called chromosomes. Chromosomes are found in all of the body's cells except for red blood cells, which are referred to as anuclear. They are composed of DNA that carries g... More » Science Biology Cells

The rod shaped structures in the nucleus of a cell are chromosomes. They carry genetic material in a "rod" of DNA that is bonded to various proteins in the cell nucleus. More » Science Biology Cells
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The function of a cell membrane, also referred to as the plasma membrane, is to protect the structures within the cell, give shape to the cell and support its structure. More » Science Biology Cells

A normal human karyotype typically contains 23 pairs of chromosomes. Abnormalities in the number of chromosomes may result in genetic defects or serious health issues. More » Science Biology Molecular Biology & DNA

Human skin cells contain 46 chromosomes, or 23 chromosome pairs, and after mitosis, the two daughter cells also have 46 chromosomes. Mitosis is a cellular process that creates two identical daughter cells from one origin... More » Science Biology Cells

Human skin cells reproduce continuously, and each daughter cell carries a complete set of 46 chromosomes. Nucleated somatic cells, which make up the body and carry a complement of DNA, all have the same number of chromos... More » Science Biology Cells