A gene is maternally imprinted. Kate receives an affected (mutated) allele from her father and the normal allele from her mother. What is the probability that Kate will have the affected phenotype? 

Shown below are four chromosomes. The blue circles represent genes. The map units (m.u.) describe the distance of separation between genes. Which genes have the lowest recombination frequency?   

A gene is maternally imprinted. Kate receives an affected (mutated) allele from her father and the normal allele from her mother.  Assuming her partner has normal alleles, what will be the expected phenotype of Kate’s offspring? 

Please show both sides of your scratch paper to the camera if you have not already done so. In the cross AaBb x aabb, 4 different offspring categories are produced at equal frequency (i.e., each off the 4 offspring categories are present at a frequency of 25%). Does the outcome suggest independent assortment or genetic linkage of the two genes?

The gene for nail patellar syndrome (n = normal allele; N  = mutant allele) shows linkage to the blood group A, B and O alleles (IA = blood type A; IB = blood type B; i = blood type O). The IA and IB alleles both show complete dominance over the i allele. The IA and IB alleles are co-dominant to each other. The two genes are located 20 m.u. apart. An individual has the following genotype: n____i   N____IA What is the probability that the individual will pass along the chromosome N___IA to offspring?

Ben has just found out that he only has 45 chromosomes. He has a Robertsonian translocation involving chromosomes 14 and 21 as shown below. Ben’s partner Isla is normal and has 46 chromosomes. Which statement is incorrect?    

Question 1. Terminology. 1.1 Give the most appropriate term for the following expressions. Do not use abbreviations, write out the entire term in your exam pad the table supplied below. 1.1.1 The maximum amount of data that can be transferred per second over a particular medium.   1.1.2 A copper cable commonly used as a network medium.   1.1.3 An input device that converts hardcopy to softcopy.   1.1.4 A satellite that maintains it’s position over a fixed point on the earths surface.   1.1.5 A number system which has 16 elements.       (5)

Question 2 – Hardware   2.1     2.1.1 What component does core2 quad refer to? (1) 2.1.2 Explain briefly what is meant by core2 quad. (2) 2.2 The PC has 16GB (Gigabyte) of memory. What type of memory is being referred to? (1) 2.3 It also has a 1 TB (Terabyte) hard disk drive.   2.3.1 What is the EXACT ratio between 1GB and 1TB? (1) 2.3.2 Why is the hard drive much larger than memory? Explain briefly. (2) 2.3.3 What technology does a hard disk drive use to store data. (1) 2.3.4 Name two other technologies used for data storage. (2) 2.4 Is the PC very powerful? If yes, explain why he needs it. If no, explain why it is adequate (powerful enough). (3) 2.6 His receptionist has her own PC. Would her unit require the same specifications as his – yes/no? Motivate. (3) 2.7 He will also need a printer.   2.7.1 Name two types of printers that he can choose from. (2) 2.7.2 Describe how any one of the above printers operates. (3) 2.7.3 Which one would you advise the doctor to choose. Motivate. (3) 2.8 He also needs to select a monitor. He decides on a large touch screen.   2.8.1 Name two different technologies used with touch screens. (2) 2.8.2 Name two important specifications that the selected screen should have, excluding size. (2)     [28]

1.2 Briefly describe the following terms – do not write what it stands for – do not write out the acronym   1.2.1 GPS (Global Positioning System (2) 1.2.2 World Wide Web (WWW) (2) 1.2.3 Input device. (2)     [11]  

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