Question

Differentiate between: Repetitive DNA and Satellite DNA

Answer 1

Dear Student,

◆ Repetitive DNA Vs Satellite DNA -

• Repetitive DNA can be tandem repeats, interspersed repeats while satellite DNA can be micro-satellite, mini-satellite.
• Repetitive DNA forms light bands while satellite DNA forms small dark bands.
• Repetitive DNA doesn't show polymorphism while satellite DNA show polymorphism.
• All repetitive DNA must not be satellite DNA but all satellite DNA are repetitive DNA.

Thanks dear. Hope this helps you..

Answer 2

Repetitive DNA and Satellite DNA:

• Repetitive DNAs are those parts of DNAs that are present in normal genome of an individual and is consisted of several repeats of either same nitrogen base or a repeat of a particular sequence of DNA that is called a tandem.
• It is present between two genes that are often seen to differentiate between two genes.
• Satellite DNAs are those parts of DNA that are present at end of DNA.
• Those DNAs are parts which also have repeats of sequences but not like that of repetitive DNA.
• It has a repetition of one or two base pairs for a considerable number of time.
• According to number of repetition, there are micro, mini and macro satellite DNAs.