b. In humans, the AR gene Is located on the X chromosome. If a person who Is XY has a complete deletion of the AR gene, do you think giving them testosterone Injections during puberty would cause an Increase In expression of male secondary sex characteristics compared to not receiving Injections? Explain your answer.

A complete deletion of the AR gene, would lead to a condition known as androgen insensitivity syndrome.

Explanation:

In such individuals, injection of testosterone (androgen) would not be sensitive to androgens and become less responsive to these hormones or unable to use these hormones at all.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

the correct answer to this question is 2