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8 Answered Questions for the topic Inheritance

Inheritance Biology Retinoblastoma


Biology College question

In 40% of cases of retinoblastoma, a predisposition to developing the cancer is inherited (as in the pedigrees above). However, in 60% of cases of retinoblastoma, the cancer occurs sporadically... more
Inheritance Computer Programming C#


Partially Overriding a Virtual Auto-Property in a Child Class?

Time for a theoretical question I just ran across.The following code is valid and compiles: public class Parent { public virtual object TestProperty { get; set; } } public class... more


Prefer composition over inheritance?

Why prefer composition over inheritance? What trade-offs are there for each approach? When should you choose inheritance over composition?
Inheritance Python Class


Python class inherits object?

Is there any reason for a class declaration to inherit from ``object``?I just found some code that does this and I can't find a good reason why. class MyClass(object): # class code... more
Inheritance Python Types


What are the differences between type() and isinstance()?

What are the differences between these two code fragments?Using `type()`: import types if type(a) is types.DictType: do_something() if type(b) in types.StringTypes: ... more
Inheritance Ruby Subclass


Test whether a Ruby class is a subclass of another class?

I would like to test whether a class inherits from another class, but there doesn't seem to exist a method for that. class A end class B < A end B.is_a? A => false ... more
Inheritance European History Europe


Why couldn't bastards inherit titles?

Why were bastards historically not able to inherit nobility or monarchy from their parents? What about being a bastard made one unfit to rule? For example William IV of the UK was succeeded by his... more
Inheritance Algbra Ratios


3 Part Ratio

Hi, I need help with this problem, I'm unsure of how to set it up, or solve it. My book says: "An inheritance of $5,000 is to be divided by 3 men in a ratio of 5:3:2. How much will each man... more

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