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What are the two types of nucleotide bases which make up DNA, and which bases bond with one another? What is the difference with these bases in RNA?

The two types of nucleic bases are purines and pyrimidines. The purines are adenine and guanine, and the pyrimidines are cytosine and thymine. Purines always bond with pyrimidines and in DNA, adenine and thy...
NJ
Answered by Nour J. • Biology tutor
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Describe and evaluate the working memory model

Proposed by Baddeley and Hitch in the 1970s following a series of dual-task experiments, the working memory model (or the multi-store model) comprises 4 slave systems: the central executive, the phonological...
OE
Answered by Olga E. • Psychology tutor
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How/what should I revise for the A level History exam ?

Revision is extremely individual, my recommendation is that you figure out how you learn sooner rather than later. Do you learn by making mind maps? Re-writing your notes? Verbal testing? Timelines? These ar...
IS
Answered by Ivie S. • History tutor
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What is the basic biochemistry of carbohydrates?

Three types of carbohydrates: 1. Monosaccharide. "Mono" means one. Contains one sugar monomer. 2. Disaccharide. "Di" means two. Contains two sugar monomers. 3. Polysaccharide. "Poly&...
BG
Answered by Beth G. • Biology tutor
3334 Views

Describe and evaluate research into at least one factor affecting the accuracy of eyewitness testimony.

One piece of research that has explored factors affecting the accuracy of eyewitness testimony, comes from Loftus and Palmer (1974). These researchers investigated the impact of leading questions on the accu...
Answered by • Psychology tutor
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