PATHOLOGY

Detailed explanation-1: -These long strands of coiled-up DNA and proteins are called chromosomes. Each chromosome contains many genes. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression.

Detailed explanation-2: -Chromosomes, thin strands of heredity material that fill the nucleus, contains information for directing a cell’s functions. For example, the instructions in the chromosome ensure that leaf cells grow and divide to form more leaf cells.

Detailed explanation-3: -A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes.

Detailed explanation-4: -Chromosomes are found carrying your DNA in the nucleus of your cells. DNA looks like a spiral staircase (double helix). The rungs are base pairs and the rails are sugar and phosphate molecules.