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How do you form the past tense?

If it is an er verb you use the ending é travailler- j'ai travaillé, ils ont travaillé, est-ce-que vous avez travaillé en France? If it is an ir verb you use the ending i finir- j'ai fini mais ils n'ont pas ...
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Answered by Scarlett S. • French tutor
2680 Views

Describe Protein Synthesis

DNA is unzipped by a helicase, the gene to be encoded is transcribed to mRNA by the enzyme RNA polymerase, in mRNA the thymine base is substituted by uracil. The mRNA leave the nucleus via a nuclear pore and...
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Answered by Cameron B. • Biology tutor
4474 Views

The program I've written doesn't do what its supposed to! I don't have any errors, so I don't even know where to start looking for the problem. Where can I begin?

Learning strategies for isolating issues in non-trivial programs is essential for successful programming of any level. Unlike syntax or run-time errors which can often be looked up online or in a book, a pro...
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Answered by Brendan C. • Computing tutor
2419 Views

What is temporal and spatial summation in synaptic transmission?

Synaptic transmission, whether chemical or electrical, results in a change in membrane potential of the post-synaptic cell. If an excitatory synapse is activated, this results in a depolarization of the post...
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Answered by Marie M. • Biology tutor
10699 Views

How do I conjugate regular verbs in the preterite tense?

As you may be aware, there are three verb types in Spanish, those ending in -ar, those ending in -er, and those ending in -ir. Much like in the present tense, they have different endings. However, the preter...
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Answered by Adam S. • Spanish tutor
21668 Views