Need the SQL Query to find out the below Result : below is the source table with data

PARENT_ID	PARENT_NAME	CHILD_GENDER
1111	    AAA	        M
1111	    AAA	        F
1234	    BBB	        M
1234	    BBB	        M
1235	    CCC	        M
1236	    DDD	        F
1236	    DDD	        F
1236	    DDD	        M
1237	    EEE	        M
1237	    EEE	        M
1237	    EEE	        F
1238	    FFF	        F
1239	    GGG	        F
1239	    GGG	        F

And I need to find out the Parent_ID , who has Childs both M & F
the required output is as below
PARENT_ID	PARENT_NAME	CHILD_GENDER
1111	    AAA	        M
1111	    AAA	        F
1236	    DDD	        F
1236	    DDD	        F
1236	    DDD	        M
1237	    EEE	        M
1237	    EEE	        M
1237	    EEE	        F

What is the SQL Query

