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How does the structure of a nucleotide contribute to the structure of DNA, and its function as a carrier of genetic information?

There are four DNA nucleotides: Adenine, Cytosine, Thymine and Guanine. They are each made up of a nitrogenous base, deoxyribose sugar, and a phosphate group, and the four nucleotides differ in the structure...
MA
Answered by Matthew A. • Biology tutor
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How are electron microscopes (TEM) fundamentally different from light microscopes and what are the advantages and disadvantages of each?

Microscopes, in general, work by concentrating radiation of a given wavelength be it light or electrons (let's think of it as a wave just like light) onto a specimen (condensor/electromagnets) after which th...
YZ
Answered by YuGeng Z. • Biology tutor
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What does the term 'enzyme' mean? What conditions affect an enyme's activity?

An enzyme is a biological catalyst Perform chemical reactions by lowering the activation energy ( could then draw out energy diagram ) Form enzyme-substrate complexes to then form enzyme-product complexes (e...
RB
Answered by Rosie B. • Biology tutor
4581 Views

Explain how competitive inhibitors work?

Competitive inhibitors, compete for the active site. They have a similar shape to the substrate and so can bind to the active site and prevent the substrate from binding. This means the subtrate cannot bind ...
RG
Answered by Rabia G. • Biology tutor
3414 Views

Describe briefly the role of tRNA and mRNA in the translation process

mRNA is produced from the transcription of DNA in the nucleus. Afte splicing has occured to remove non coding introns from the pre-mRNA, the mRNA leaves the nucleus via nuclear pores. Moving to a ribosome, t...
HM
Answered by Harry M. • Biology tutor
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