Question

30. Explain the phenomenon of sex determination in human being.
31. State two merits of parallel connection of resistors in the circuit.​

Answer 1

Answer:

Explanation:

30. Human beings have XX_XY sex determination system. In this, the males have XY sex chromosomes. They produce two types of gametes having X and Y chromosome. ... The Y chromosome carries factors responsible for triggering male development. The X chromosome carries factors responsible for triggering female development.

31.

# In parallel combination each appliance gets the full voltage.

# If one appliance is switched on/of others are not affected.

# The parallel circuit divide the current through the appliances. Each appliance gets proper current depending on its resistance.