Form 5 - Topic 5: Inheritance (PYQ-Soalan Tambahan)
SPM 2009
20 A boy has blood group A and his sister has blood group B.
Which is the correct combination of genotypes belonging to their parents?
Father | Mother | |
A | AB | AB |
B | AA | BB |
C | AA | BO |
D | BO | BO |
21 Which of the following does not cause variation?
Antara yang berikut yang manakah tidak menyebabkan variasi?
A Crossing over
B Random fertilization
C Separation of sister chromatids
D Independent assortment of chromosomes
Soalan struktur.
SPM 2009 ( Sebahagian)
Diagram2.2 shows the formation of a type of genetic disorder.
(i) State three characteristics of this genetic disorder.
1. .........................................................................................................................................................
2. .......................................................................................................................................................
3. .........................................................................................................................................................
[3 marks]
(ii) Explain how a fault in the formation of cell R can cause this genetic disorder.
……………………………………………………………………………………...……………………………………………………………
………………………………………………………………………………………...………………………………………………………..
[3 marks]
To all form 5 Sc students,
ReplyDeleteplease copy or print this PYQ- extra questions,
and bring to the class for discussion.This topic will be taught when the school reopen on 20 june 2010. Be prepared.