Khloé Kardashian shuts down troll over sister Kim's use of a surrogate: 'Try informing yourself first'

If criticism comes the Kardashians’ way, you can always trust Khloé to step up and speak out.

The reality star had her older sister Kim Kardashian’s back this week after an Instagram commenter joked that Kim’s infant daughter, Chicago West, couldn’t possibly look like her because she was carried by a surrogate.

The remark was in response to a childhood photo Kim posted of herself. Sister Kylie Jenner was struck by the young Kim’s likeness to 11-month-old Chicago. The youngest of Kim’s three children with husband Kanye West was delivered by a surrogate after the KKW Beauty founder struggled with infertility.

Jenner’s comment about the physical similarities between mom and daughter prompted one commenter to fire back that Chicago could only look like West or the surrogate mother, since Kim herself didn’t carry the child.

But the commenter was wrong, as the baby was fertilized with Kim’s egg and West’s sperm, and shares no DNA with the surrogate. Khloé wasted no time setting things straight.

“If you don’t really know about someone’s situation then maybe you should not comment,” Khloé wrote. “Try informing yourself first before you make such silly statements doll.

“Your passive wannabe petty comment Is simply uneducated,” she added. “Chicago is completely Kimberly’s biological child. Praise the lord she was able to have a surrogate and that we are blessed with sweet gorgeous Chi Chi.”

The troll persisted.

“She did have a surrogate so the baby would either look MORE like Kanye or the surrogate mother,” she responded to Khloé, prompting Kardashian fans to lambaste her.

Khloé then busted out her best Biology 101 to school the commenter on how this particular case of surrogacy worked.

Kardashian and West aren’t the only celebrity couple to turn to surrogacy this year. Gabrielle Union and Dwyane Wade also welcomed their daughter, Kaavia James, via a surrogate.

Read more from Yahoo Lifestyle:

• Kim Kardashian and Kanye West slammed for ‘obnoxious and unnecessary’ private 747 flight

• Kim Kardashian apologizes for ‘insensitive’ comments comparing her weight loss to an eating disorder

• Khloé Kardashian criticized for letting daughter play in her insanely expensive Birkin bag: ‘She’s sitting in what’s my college tuition’

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