PHP - Parse error: syntax error, unexpected "$registro" (T_VARIABLE)

<?php

$conexion=mysql_connect('localhost','root','Adrianespro') or

      die('Error en la conexion a la base de datos');

      $bd=mysql_select_db('BD_eTienda') or

      die('Error al seleccionar la base de datos');

$registros=$conexion->query("Select * From cat_Productos where (Pro_Nombre='".$prod."'));"

$registro = mysqli_query($registros);

while ( $buyer = mysqli_fetch_array($registro)){

    echo $buyer ["nama_pembeli"];

    echo $buyer ["nama_barang"];

    echo $buyer ["nama_retribusi"];

    }

?>

$registro = mysqli_query($registros, $conexion);

echo "<table>";

echo "<tbody>".

while ( $buyer = mysqli_fetch_array($registro)){

echo "<tr>";

echo "<td>" . $buyer ["nama_pembeli"] . "</td>";

echo "<td>" . $buyer ["nama_barang"] . "</td>";

echo "<td>" . $buyer ["nama_retribusi"] . "</td>";

echo "</tr>";

}

echo "</tbody>";

echo "</table>";