The following neonatal reflex disappears by what age
This is Asymmetric tonic neck reflex (ATNR) which disappears by 6months



Reflex
Onset
Fully developed
Duration




Palmar grasp


28 weeks of gestation
32 weeks of gestation
2-3 months postnatal




Rooting reflex 


32 weeks of gestation
34 weeks of gestation
Least prominent after 1 month




Moro's reflex


28 -32 weeks of gestation
37 weeks of gestation
5-6 months postnatal




Asymmetric tonic nerve reflex 


35 weeks of gestation
1 month postnatal
6 - 7 months postnatal




Parachute reflex


7 - 8 months postnatal
10 - 11 months postnatal
Remains throughout life.
5 months
6 months
4 months
9 months