I am a medical student in China, so occasionally, I would look up some English-to-Chinese medical terms on Wikipedia.A sentence in Wikipedia related to HBeAg confuses me. (
https://en.wikipedia.org/wiki/HBeAg)
On the right part of the web page:
A simplified drawing of the HBV particle and surface antigen. Purple = Lipid Envelope, Red = Nucleocapsid Core (Note: This drawing is slightly misleading
in that the nucleocapsid core is a single entity even though it is depicted as a light blue icosahedral line shape and a red ring of circles).
***(1)Does this sentence is correct?
This drawing is slightly misleading in that the nucleocapsid core is a single entity...It appears to me that the preposition "in" in this sentence is redundant. Am I right?

***(2)What's right interpretation the writer wants to convey?
a) That the nucleocapsid core is a single entity is right in itself
b) That the nucleocapsid core is a single entity is wrong, because it is depicted as a light blue icosahedral line shape and a red ring of circles
Thanks!