How many types of RNA polymerases are operative in eukaryotes?</h2></div>

When the negatively charged DNA combines with the positively charged histone octamer, which of the following is formed?

An error in the polypeptide chain produced from DNA sequence is not always the result of mutation. The best explanation …

Maximum possible transversion, which may take place in genetic code</h2></div>

According to Watson-Crick model, hydrogen bonding in a double-stranded DNA occurs between.</h2></div>

Find the correct match.</h2></div>

Which of the following is responsible for the switching on and off of the lac operon?

What is the process of joining together different DNA fragments often referred as?</h2></div>