Answer:
The correct answer is: B, C, D,F, G, H.
Explanation:
Aneuploidy is a defect on the number of chromosomes a cell has. Human cells have 46 chromosomes, an additional chromosome (47) or a missing one (45) is an aneuploidy. Aneuploidy is usually due to a defect during cell division (chromosomes don’t separate). The following disease are examples of aneuploidy:
b. Down's syndrome (trisomy of chromosome 21)
c. Edward's syndrome (trisomy of chromosome 18)
d. Jacob's syndrome (a male with an extra Y chromosome)
f. Turner's syndrome (a female missing a X chromosome)
g. Klinefelter's syndrome (a male with an extra X chromosome)
h. Patau's syndrome (trisomy of chromosome 13)
Answer:
Negative feedback.
Explanation:
Body's homeostasis is maintained by two feedback mechanism known as positive feedback and negative feedback. Most processes in our body is controlled by the negative feedback mechanism.
The negative feedback mechanism in which the final product of the reaction decreases the further secretion of that product. In case of the body temperature rise, brain canter decreases the body temperature is controlled by negative feedback. The high level of the substance decreases its further secretion in case of maintenance of body temperature.
Thus, the correct answer is option (c).
