Ten points! Is this short sentence grammatically correct?

Question

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He has omitted some wrong information from the text, and fixed some misspelling (indicated by blue font).

Answer 1

Ron, it's got problems, but they're all easy to fix--and to understand.

First off, the comma shouldn't be there. You have one subject with two verbs, which does not use a comma. You can remember this by creating a very short sentence that does the same thing. She swam and biked, not She swam, and biked.

The word "some" means more than one, so you would want to add an "s" to misspelling to make it plural.

Fonts are types of characters, not colors. Any font can be any color. Choose another word.

Last, a logic issue. No text really ought to include wrong information. Only things which belong can be omitted (which means not included). So I would not use the word "omitted" at all. It's not clear what you mean. Has he included some wrong information from the text? Has he deleted some wrong information? Edited? Removed?

Answer 2

No >> the word "some" means more than one.  Hence it should be misspellings >> with an s.

Answer 3

No coma before and. That's all. Good Luck!

Answer 4

I don't think there should be a comma there.

Answer 5

misspellings. fonts

Answer 6

This should be re-written to sound less stilted:  

He has removed some incorrect information from the text and fixed some misspellings (shown in blue).

(No commas are needed in your original or in the revision.)