Biology 12 Chapter 21 Development and Aging - 22

Biology 12 Chapter 21
Development and Aging - 22

1. In which case cyst-like sac is formed due to neural tube defect?

a) Spina bifidia occulta
b) Spina bifidia cystia
c) Spina bifidia
d) Rubella

2. Which occurs in the lumbosacral region?

a) Spina bifidia cystia
b) Spina bifidia
c) Rubella
d) Spina bifidia occulta

3. Infants having hypothyroidism frequently have………….?

a) High amounts of purines
b) High amounts of bilirubin
c) Low amounts of bilirubin
d) Low amounts of purines

4. Permanent mental retardation occurs if………….hormone therapy is delayed or inadequate?

a) Thyroid
b) Parathyroid
c) Serotonin
d) Pituitary

5. Hyperbilirubinemia reflects immaturity of…………….?

a) Kidney
b) Liver
c) Bone
d) Brain

6. Delayed skeletal maturation reflects immaturity of…………?

a) Liver
b) Brain
c) Kidney
d) Bone

7. Polydactyl can be induced by…………….?

a) Repressor
b) Enhancer
c) Inducer
d) Teratogen

8. Cleft hand and foot consists of abnormal cleft between…………..metacarpal bones and soft tissue?

a) 1st and 3rd
b) 3rd and 4th
c) 2nd and 4th
d) 2nd and 6th

9. Abnormal fusion of 2nd and 4th metacarpal bones and soft tissue is called………….?

a) Amniotic bands
b) Club foot
c) Polydactyl
d) Cleft hand

10. Increase in fingers and toes is called……….?a) Polydactyl
b) Amniotic bands
c) Club foot
d) Cleft hand

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