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Messenger RNA (mRNA) is used during translation to form polypeptides. Describe how mRNA is produced in the nucleus of the cell. (6 marks)

This process is called transcription. In the nucleus, an enzyme helicase is used to break the hydrogen bonds between the two strands of the double helix. Only o...

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Answered by Kirstin P. Biology tutor
3157 Views

How do you best succeed at the essay element of the exam?

The key elements to doing well on the essay part:

  • know the book / movie well and know what happens in each scene 

  • know the key vocab including techincal terms

  • ...
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Answered by Caroline R. German tutor
1509 Views

During anaerobic respiration, pyruvate is converted to lactate by the enzyme lactate dehydrogenase. Explain the significance of this reaction.

This reaction involves a transfer of hydrogen from NADH to pyruvate to produce lactate and NAD+. In order for glycolysis to continue to produce ATP for the cell to use, NAD+ is requi...

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Answered by Thomas S. Biology tutor
11223 Views

Explain the trend in boiling points between HF, HCl and HBr.

There are two themes in this answer. The first being the hydrogen bonding potential of HF and the second being the difference in size of the of the halide ions. Fluorine is one of three elements that can ...

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Answered by Thomas S. Chemistry tutor
47055 Views

In a sentence like "La tarte que j'ai faite", why does the past participle match the gender of the preceding subject noun?

In French sentences, when the past participle comes after the subject noun, it always matches the gender and the number of the subject noun.

For example, in "Les rendez-vous qu'on a oubliés&qu...

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Answered by Benedek B. French tutor
2225 Views

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