Instructions
Read each question carefully and write your answers in the spaces provided.Multiple Choice Questions
1. What does "trisomy" mean in genetics?a) Having two copies of a chromosome
b) Having three copies of a chromosome
c) Having one less chromosome than usual
d) Having a broken chromosome
2. Which of the following is NOT a type of trisomy?
a) Trisomy 21
b) Trisomy 18
c) Trisomy 13
d) Trisomy 2
3. What is the most common trisomy in humans?
a) Trisomy 21
b) Trisomy 18
c) Trisomy 13
d) Trisomy 16
4. Trisomy can occur in which of the following ways?
a) During the formation of egg or sperm cells
b) After fertilization, during cell division
c) Both a and b
d) Neither a nor b
Matching Questions
Match the trisomy with its description by writing the correct letter.Trisomy 21 a) Causes severe intellectual disabilities and heart defects
Trisomy 18 b) Results in distinct physical features and intellectual disabilities
Trisomy 13 c) Most common cause of Down syndrome
Trisomy 16 d) Often results in miscarriage
1. Trisomy 21:_________
2. Trisomy 18:_________
3. Trisomy 13:_________
4. Trisomy 16:_________
Short Response Questions
1. Describe one physical feature commonly associated with Trisomy 21:2. Name one way trisomy can be detected before birth:
3. Why is Trisomy 16 often not diagnosed at birth?