diff --git a/advanced/iters.md b/advanced/iters.md
index 58cebbc..cf94927 100644
--- a/advanced/iters.md
+++ b/advanced/iters.md
@@ -443,6 +443,24 @@ does the same thing as our `count()`.
 - [The itertools module](https://docs.python.org/3/library/itertools.html)
   contains many useful iterator-related things.
 
+## Checking if object is itterable or not
+
+There is an easy way of checking if an object in python is iterable or not. The following code will do the needful.
+```python
+>>> def check(A):
+...     try:
+...         st = iter(A)
+...         print('yes')
+...     except:
+...         print('no')
+...
+>>> check(25)
+no
+>>> check([25,35])
+yes
+>>>
+```
+Here you can observe that the 25 is an integer, so it is not iterable, but [25,35] is a list which is iterable so it outputs no and yes respectively.
 ***
 
 If you have trouble with this tutorial please [tell me about
diff --git a/basics/lists-and-tuples.md b/basics/lists-and-tuples.md
index 77ea0ca..5f6f342 100644
--- a/basics/lists-and-tuples.md
+++ b/basics/lists-and-tuples.md
@@ -301,7 +301,7 @@ post about this](http://nedbatchelder.com/blog/201608/lists_vs_tuples.html).
     item from them.
 - `thing = another_thing` does not create a copy of `another_thing`.
 - Tuples are like lists, but they can't be changed in-place. They're
-    also used in different places.
+    also used in different places. We can concule by saying that Lists are mutable and Tuples are not.
 
 ## Examples