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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.
AP
Answered by Alastair P. • Biology tutor
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Explain what a hydrocarbon is, and suggest two properties of hydrocarbons that leave a fractioning column near the top.

A hydrocarbon is a molecule that contains only hydrogen and carbon atoms. Any two of the follwing properties are suitable answers: Low boiling points, low viscosities or high flammability.
AP
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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 group...
AP
9130 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 atom to a non-metallic...
AP
4002 Views

How do I solve a quadratic equation?

To solve a quadratic equation we need to find the value of x for which a x 2 +b x+c=0,where a,b,c are constants.There are some well known formulas which you should get accustomed with.However,in this answer,...
MG
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