Question

How do you order chromosomes?

Answer 1

Chromosomes:

1. Chromosomes are thread-like structures carrying genetic information.
2. It is found inside the nucleus
3. Humans have 23 pairs of chromosomes - 22 pairs of autosomes and 1 pair of allosome (sex chromosome)

Ordering chromosomes:

1. Karyotyping is the process of taking photographs of individual chromosomes and arranging in a standardized format to analyze.
2. It can reveal structure changes and changes in chromosome number.
3. In karyotyping of human chromosomes, autosomes are named from 1 to 22 in order of decreasing size
4. Sex chromosome is kept at last, i.e. 23rd.
5. Only exception is chromosome 21, which is the smallest autosome but kept before 22.
6. Chromosome 1 is the largest chromosome with 2968 genes.