QUES: Modern DNA technologies have shown interesting result

correct the punctuation.

CORRECTED: Modern DNA technologies, have shown interesting result.

QUES: The lecture will be held Tuesday July 26th in the auditorium Entrance is free

correct the punctuation.

CORRECTED: The lecture will be held Tuesday July 26th in the auditorium. Entrance is free.

QUES: After midday mainly cloudless weather will prevail Morning temperatures will be around 15 C During the day they will reach a maximum of 19 C Low temperatures at night will be around 9C Easterly winds are weak

correct the punctuation.

CORRECTED:
After midday mainly cloudless weather will prevail. Morning temperatures will be around 15 C. During the day they will reach a maximum of 19 C. Low temperatures at night will be around 9C. Easterly winds are weak.