Q22 of 30 Page 1

What is satellite DNA in a genome? Explain their role in DNA fingerprinting.

The repetitive DNA are separated from the bulk genomic DNA as different peaks during gradient centrifugation. The DNA forms the major peak and the other small peaks are referred to as satellite DNA.


These sequences form a large portion of human genome and show high degree of polymorphism. DNA from every tissue from an individual shows the same degree of polymorphism and is heritable, hence very useful in DNA finger printing.


More from this chapter

All 30 →
20

Expand the following and explain any one of them.

a) IVF


b) ZIFT


c) IUI


d) MTP


 21

What is the genetic basis for proof that codon is a triplet and is read in a contiguous manner without punctuations?

 23

“Microbes play a dual role when used for sewage treatment as they not only help to retrieve usable water but also generate fuel”. Explain.

 24

What does BOD of a water body stand for? How is it related to water pollution?