[Answer] What is the difference between a chromatid and a chromosome?

Answer: A chromatid is one half of a replicated chromosome whereas a chromosome consists of DNA wrapped around proteins in a highly organized manner.
What is the difference between a chromatid and a chromosome?

A chromatid (Greek khrōmat- ‘color’ + -id) is one half of a duplicated chromosome. Before replication one chromosome is composed of one DNA molecule. In replication the DNA molecule is copied and the two molecules are known as chromatids. During the later stages of cell division these chromatids separate longitudinally to become individual chromosomes. Chromatid pairs are normally genetically identical and said to be homozygous. However if mutations o…

Chromosome segregation occurs at two separate stages during meiosis called anaphase I and anaphase II (see meiosis diagram). In a diploid cell there are two sets of homologous chromosomes of different parental origin (e.g. a paternal and a maternal set). During the phase of meiosis labeled “interphase s” in the meiosis diagram there is a round of DNA replication so that each of the chromosomes initially present is now composed of two copies called chromatids. These chromosomes (paired chromatids) then pair w…

Differences in absolute sizes of chromosomes . Chromosomes can vary in absolute size by as much as twenty-fold between genera of the same family. For example the legumes Lotus tenuis and Vicia faba each have six pairs of chromosomes yet V. faba chromosomes are many times larger. These differences probably reflect different amounts of DNA …

Chromosome segregation – Wikipedia

Sister chromatids – Wikipedia

Chromatid – Wikipedia

Sister chromatids – Wikipedia

Following chromosomal DNA replication the blue chromosome is composed of two identical sister chromatids and the pink chromosome is composed of two identical sister chromatids. In mitosis the sister chromat ids separate into the daughter cells but are now referred to as chromosomes (rather than chromatids) much in the way that one child is not referred to as a single twin.

When dicentric chromosomes form a series of events can occur called a breakage-fusion-bridge cycle: Spindle fibers attach onto…

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