  In this work we establish some polynomials and entire functions have only
real zeros. These polynomials generalize q-Laguerre polynomials
$L_{n}^{(\alpha)}(x;q)$, while the entire functions are generalizations of
Ramanujan's entire function $A_{q}(z)$, q-Bessel functions
$J_{\nu}^{(2)}(z;q)$, $J_{\nu}^{(3)}(z;q)$ and confluent basic hypergeometric
series.
