Chromosomes are structures within cells that contain genetic material in the form of DNA. Each chromosome consists of a long DNA molecule wound around proteins called histones. The DNA in a chromosome carries genes, which are the instructions for building and maintaining an organism. Chromosomes come in pairs, with one inherited from each parent, and are organized into different regions such as telomeres, centromeres, and chromatin.
chromosome
chromosome
centromere
No, a chromosome is a structure that contains genetic information, while an allele is a specific variant of a gene located on a chromosome. Chromosomes contain many alleles that determine an individual's traits and characteristics.
A sat chromosome, short for satellite chromosome, is a chromosome with a secondary constriction that contains highly repetitive DNA sequences called satellite DNA. These regions appear as small, secondary appendages on the chromosome and play a role in chromosome structure and organization.
Molecular structure of a chromosome
yes
chromosome
Down's Syndrome is an example of a birth defect characterized by an abnormality of the chromosome structure.
The chromosome
chromosome
A chromosome
Vesicle
At the beginning of cell division, DNA and the proteins associated with the DNA coil into a structure called a chromosome. Chromosomes are visible under a microscope and contain the genetic material (DNA) of an organism.
Nucleus
A chromosome.
chromosome