Category: Genetics

Difference between facultative and constitutive heterochromatin 0

Difference between Facultative and Constitutive Heterochromatin

DNA is packaged and is present as chromatin scaffolded with non-histone chromosomal proteins. In some places, chromatin is densely packed to form the darkly stained and transcriptionally inactive heterochromatin. Heterochromatin...

group I vs group II introns 0

Difference between Group I and Group II introns

In many eukaryotic genes, the coding sequences are interrupted by blocks of non-coding sequences. These intervening sequences are termed introns. Exons can be defined as any region of the immature...

genetic code NCERT 0

Genetic code – a divine writing

Ever wondered why your nose resembles your father’s nose? This is due to the inheritance of traits from generation to generation. Our modern understanding of how traits may be passed...

Polygenic inheritance 0

Is polygenic inheritance quantitative in nature?

In nature, a few characteristics have traits spread across gradients which is unlike the Mendelian inheritance pattern. In polygenic inheritance, two or more genes control one character. These are called polygenic...