List of top Biology Questions on Molecular Basis of Inheritance

Due to discovery of which of the following in 1980, the evolution was termed as RNA world
Frequency of an allele in an isolated population may change due to
At the time of organogenesis genes regulate the process at different levels and at different time due to
During replication of a bacterial chromosomes DNA synthesis starts from a replication origin site and

If the sequence of one strand of DNA is written as follows: 

5'-ATGCATGCATGCATGCATGCATGCATGC-3' 

Write down the sequence of complementary strand in 5'→3' direction

Group the following as nitrogenous bases and nucleosides: Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
What is DNA fingerprint? Mention its application.
Why is the Human Genome project called a mega project?
Explain(in one or two lines)the function of the followings:
(a)Promoter
(b)tRNA
(c)Exons
In the medium where E.coli was growing lactose was added which induce the lac operon. Then why does lac operon shut down some time after addition of lactose in the medium?

List two essential roles of the ribosome during translation.

How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?

Depending upon the chemical nature of the template (DNA or RNA) and the nature of nucleic acids synthesised from it (DNA or RNA), list the types of nucleic acid polymerases.

If the sequence of the coding strand in a transcription unit is written as follows: 

5-ATGCATGCATGCATGCATGCATGCATGC-3

 Write down the sequence of mRNA.

If a double standard DNA has 20 per cent of cytosine calculate the per cent of adenine in the DNA.
Differentiate between the followings:
(a)Repetitive DNA and Satellite DNA
(b)mRNA and tRNA
(c)Template strand and coding strand

Briefly describe the following: 

(a) Transcription 

(b) Polymorphism 

(c) Translation 

(d) Bioinformatics
 

Which property of DNA double helix led Watson and Crick to hypothesise semiconservative mode of DNA replication? Explain.