Question

The University of Papua New Guinea

9. The excitability of the nervous system is regulated by parathormone which is secreted by the

a adrenal gland

b. parathyroid gland

thyroid gland

d. pituitary gland

10. The genetic code is contained in structures called genes that are arranged on

a chromosomes

b. DNA

c. zygotes

d. pituitary gland

11. A trait will be found in the child only when the child receives the same gene for the same trait from both parents is a

a. recessive

b. dominant

e. Mendelian

d. dizygotic

12. To study inheritance in humans, scientists often study twins because on type of twins is genetically identical while the other type shares only 50 percent of the same genes; the type of twin that is genetically identical is called:

a. Mendelian

b. adoptive

c. monozygotic

d. dizygotic

13. The results of a study of adopted children would indicate that a characteristic was influenced by inheritance if the children resembled more their

parents:

a, adoptive

b. biological

c. nonparous

d. dizygotic

Answers

Answered by GPT-4o mini
Here are the answers to the questions based on standard biological principles:

9. The excitability of the nervous system is regulated by parathormone which is secreted by the
**b. parathyroid gland**

10. The genetic code is contained in structures called genes that are arranged on
**a. chromosomes**

11. A trait will be found in the child only when the child receives the same gene for the same trait from both parents is a
**a. recessive**

12. To study inheritance in humans, scientists often study twins because one type of twins is genetically identical while the other type shares only 50 percent of the same genes; the type of twin that is genetically identical is called:
**c. monozygotic**

13. The results of a study of adopted children would indicate that a characteristic was influenced by inheritance if the children resembled more their
**b. biological** parents.

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