Asked by: Lilibeth Panuschscience genetics
What is the difference between chromosomes chromatids and homologous chromosomes?
Last Updated: 27th March, 2020
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Also asked, what is the difference between chromosomes and homologous chromosomes?
Explanation: Although both are very similar, the difference between the two is the pairing. Homologous chromosomes are basically two similar chromosomes inherited from father and mother. They are homologous because they have the same genes, though not same alleles.
Similarly, is a chromosome one or two chromatids? Following replication, each chromosome is composed of two DNA molecules; in other words, DNA replication itself increases the amount of DNA but does not (yet) increase the number of chromosomes. The two identical copies—each forming one half of the replicated chromosome—are called chromatids.
Accordingly, what is homologous chromosomes?
Homologous chromosomes are made up of chromosome pairs of approximately the same length, centromere position, and staining pattern, for genes with the same corresponding loci. The alleles on the homologous chromosomes may be different, resulting in different phenotypes of the same genes.
Is sister chromatids a chromosome?
The two copies of a chromosome are called sister chromatids. The sister chromatids are identical to one another and are attached to each other by proteins called cohesins. As long as the sister chromatids are connected at the centromere, they are still considered to be one chromosome.