Chromosomal abberation

Question 1

What is a common cause of Klinefelter’s syndrome?

Answer 1

Addition of sm extra X chromosome in males

Question 2

Chromosomal abnormality in incompatible with life?

Answer 2

Tetraploidy

Question 3

this syndrome is also referred to as “47, XXY”

Answer 3

Klinefelter’s syndrome

Question 4

What is the chromosomal count in a tetrasomic condition

Answer 4

48

Question 5

The loss and reinsertion of a chromosomal segment in reverse

Answer 5

Inversion

Question 6

What is a primary cause of numerical chromosomal abberation

Answer 6

Meiotic nondisjunction

Question 7

Down syndrome is primarily caused by which chromosomal abberation

Answer 7

Trisomy 21

Question 8

Environmental factor is known to be tetratogenic

Answer 8

Radiation

Question 9

What is a common physical feature in Patau syndrom

Answer 9

Cleft lip and palate

Question 10

What type of chromosomal abberation invloves reciprocal exchange between non homologous chromosomes

Answer 10

Translocation

Question 11

Which of the following is considered a numerical chromosomal abberation

a. Duplication
b. Inversion
c. Translocation
d. Trisomy

Answer 11

d. Trisomy