Humans normally have 46 chromosomes. A person born with an extra 21st chromosome (47 in all) would have ______________?

Related Mcqs:

1. The material of which chromosomes are composed is called ______________?

   A. deoxyribonucleic acid
   B. genes
   C. atoms
   D. myelin

2. In gamete development, the fact that each mature egg or sperm contains only one chromosome from each pair is attributable to a process known as ______________?

   A. fertilization
   B. immunization
   C. reduction division
   D. zygotic division

3. Each cell of the body has how many chromosomes?

   A. 47
   B. 45
   C. 50
   D. 46

4. The number of chromosomes in human being is:

   A. 20
   B. 21
   C. 23
   D. 24

5. Fertilization of human eggs normally takes place in the ______________?

   A. uterus
   B. ovaries
   C. cervix
   D. fallopian tubes

6. The 23rd chromosome determines the sex of the child. A male pattern is:

   A. XYX
   B. XXX
   C. XX
   D. XY

7. Which of the following species has brain more anatomically complex than humans?

   A. dolphins
   B. elephants
   C. gorillas
   D. chimpanzees

8. The cells in higher animals and in humans that make about half of the nervous system is:

   A. Neurons
   B. Neuroglia
   C. Neuroglia
   D. Neurula

9. According to Chomsky, humans have a________to develop language.

   A. perceptual set
   B. telegraphic readiness
   C. learning set
   D. biological predisposition

10. Experiments with rats, monkeys and humans using sham feeding have advanced our knowledge about food intake by demonstrating that:

    A. Satiety and reward signals are necessary to control eating
    B. Taste and smell stop food-seeking
    C. Gastric distension is caused by sham feeding
    D. Satiety motivates food-seeking behavior