Chromosome Size Mismatch in Human Males
Human somatic cells contain 23 pairs of chromosomes: 22 pairs of autosomes and 1 pair of sex chromosomes.
- Autosomes: These are numbered pairs (1 through 22). In both males and females, homologous autosomes within a pair are generally very similar in size and genetic content.
- Sex Chromosomes: In human males, the sex chromosome pair consists of one X chromosome and one Y chromosome (XY). The X chromosome is considerably larger than the Y chromosome. This significant size difference makes the sex chromosome pair mismatched.
In contrast, pairs like the first, thirteenth, or twentieth pair of autosomes are homologous and matched in size.
Therefore, the pair of human male chromosomes that is mismatched in size is the Sex chromosomes.
Important Questions from Genetics and Evolution
Which one of the following is a nonsense codon in universal code?
Which one of the following is an example of Analogous organs?
Which base of a codon is called wobble base?
How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
Pair of genes that occupy a specific location on a particular chromosome and control the same trait is termed as _________.
