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What are the differences between exons and introns found in DNA.

Exons are coding regions of DNA, and are copied into mRNA and transcribed as proteins.

Introns are non-coding regions of DNA, and are spliced out of pre-mRNA so are not copied into mRNA.<...

Answered by Alastair P. • Biology tutor

11034 Views

What is the difference between an aldehyde and a ketone, and what type of molecule can they each be reduced to?

Both aldehydes and ketones have a carbonyl functional group (C=O), however in aldhydes the carbonyl carbon atom is the terminal carbon of the chain, whereas in ketones the carbonyl carbon has two alkyl...

Answered by Alastair P. • Chemistry tutor

8764 Views

What are the differences between covalent and ionic bonding?

Covalent bonding is the sharing of pairs of electrons between two non-metallic atoms.

Ionic bonding is where electrons are transferred from one atom to another, usually from a metallic at...

Answered by Alastair P. • Chemistry tutor

3738 Views

How do I solve a quadratic equation?

To solve a quadratic equation we need to find the value of x for which ax²+bx+c=0,where a,b,c are constants.There are some well known formulas which you should get accustomed with.Howe...

Answered by Marco-Iulian G. • Maths tutor

5919 Views

To what extent were economics the primary factor for reform in Russia under Tsar Alexander II?

In order to assess whether economics were the most important factor for reform in Russia under Tsar Alexander II, the emancipation of the serfs in 1861 under Tsar Alexander II must be considered. There is...

Answered by James B. • History tutor

10212 Views