Consider the following pedigree for Hunter Syndrome, a sex-linked, recessive condition leading
to loss of hearing and cardiac problems among other symptoms. What is the probability that
individuals IV 3 and IV 4 will have a child with Hunter syndrome? O
Solution
Answer is 25%
Due to the chances of become a carrier in III rd generation female is 50 % so if the female in
IIIrd generation is a carrier then the IV 3 and IV 4 having a Huntington syndrome is 25%..
Describe the advantages and disadvantages of the four standard acces.pdf
1. Describe the advantages and disadvantages of the four standard access control models:
Solution
Access control is the ability to allow only authorized users, programs or processes system or
resource to be accessed.It generates or denies requests according to a particular security model,
of certain permissions to access a resource.It is a set of procedures which is performed by
hardware, software and administrators so that they can monitor access and identify users
requesting access.
Advantages:
Access control systems or model provide the essential services of authorization, identification
and authentication (I&A), access approval, and accountability
authorization specifies what a subject can do
identification and authentication ensure that only legitimate subjects can log on to a system.
access approval grants access during operations, by association of users with the resources that
they are allowed to access, based on the authorization policy.
accountability identifies what a subject (or all subjects associated with a user) did.
Disadvantage
There arenot a lot of deployments because it is still kind of new, and because you only get the
full benefits when you deploy sufficient infrastructure. Vendors are still playing with the right
implementation of the right protocols. There is a lot left to be worked out.