*ARAB REPUBLIC OF EGYPT
*St. GEORGE INTERNATIONAL SCHOOLS*
Quiz 1
*Student name :………………………..
*Grade : 10
Answer the following questions with short answers. 1 mark each
10
1-What is a pedigree? __________________________________
2-A Square within a pedigree represents what? ____________________________
3. A circle within a pedigree represents what? ______________________________’
4. Which genetic mutation creates mucus in the lungs and makes it hard to breathe?
a-Sickle cell b-Down syndrome
c-Haemophilia
d-Cystic fibrosis
5. The incomplete and or absence of GALT is caused by which genetic mutation?
a-Down syndrome
b-Sickle cell
c-Cystic fibrosis
d-Galactosemia
6. If a square or circle within a pedigree is shaded this indicates what?
_______________________________________________________________________
7. If a square or circle within a pedigree is NOT shaded this indicates what?
___________________ ___________________________________________
8-Albinism is ( Dominant – Recessive – co dominant ) genetic disorder.
9-TSD disease affected ( Stomach – Brain – Kidneys )
10-A man with brown eyes marry to a women with brown eyes , two of the offspring
born with blue eyes while the other two born with brown eyes ,explain using pedigree
why not all the offspring had been born with brown
eyes?............................................................................................................
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End of quiz