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Test: Reaching the Age of Adolescence- 2 - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Reaching the Age of Adolescence- 2

Test: Reaching the Age of Adolescence- 2 for UPSC 2025 is part of Science & Technology for UPSC CSE preparation. The Test: Reaching the Age of Adolescence- 2 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Reaching the Age of Adolescence- 2 MCQs are made for UPSC 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Reaching the Age of Adolescence- 2 below.
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Test: Reaching the Age of Adolescence- 2 - Question 1

A female gamete carries ________ chromosome(s).

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 1

Ovum, which is the female gamete, always carries an X chromosome. This is because the allosome pair in females consists of two X chromosomes (XX).

Test: Reaching the Age of Adolescence- 2 - Question 2

Menstrual cycle is controlled by

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 2

Menstrual cycle is the cyclic change in inner wall of uterus for receiving fertilized egg. It begins with flow of mucus and blood through vagina. Whole event is controlled by hormones.

Test: Reaching the Age of Adolescence- 2 - Question 3

The features that help to distinguish the male from female are called

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 3

Secondary sexual characteristics develop during puberty and are generally different for males and females. Development of Adam’s apple in males and of breasts in females are examples of secondary sexual characteristics and thus, can be used to differentiate between the two.

Test: Reaching the Age of Adolescence- 2 - Question 4

The hormone which brings about characteristic changes in male at puberty is called

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 4

Testosterone hormone is released by testis of male. This hormone brings about changes like appearance of moustache, beard at puberty.

Test: Reaching the Age of Adolescence- 2 - Question 5

AIDS is caused by a

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 5

Acquired immune deficiency syndrome (AIDS) is caused by a virus called human immune virus (HIV). AIDS is a sexually transmitted disease.

Test: Reaching the Age of Adolescence- 2 - Question 6

Sebaceous gland is also known as

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 6

Sebaceous gland is also known as oil gland. Sebaceous gland is present in skin that release oily substance to make skin moist.

Test: Reaching the Age of Adolescence- 2 - Question 7

Which of the following glands are called ductless glands?

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 7

Endocrine glands are called ductless gland because it do not contain duct to carry hormone to target site. The hormones release from endocrine glands reaches to target site through blood.

Test: Reaching the Age of Adolescence- 2 - Question 8

Puberty ends when an adolescent reaches ______________________.

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 8

Puberty ends when an adolescent reaches reproductive maturity. Here's why:
- Reproductive Maturity: Puberty signifies the period during which a person becomes capable of sexual reproduction.
- Physical Changes: During puberty, the body undergoes various physical changes to prepare for reproduction.
- Hormonal Shifts: Hormonal changes influence physical and emotional development.
- Menstruation or Sperm Production: The onset of menstruation in girls or sperm production in boys marks reproductive readiness.
Thus, the correct answer is A: Reproductive maturity.

Test: Reaching the Age of Adolescence- 2 - Question 9

Hormone reaches here through blood stream

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 9

The correct answer is B: Target site.
- Hormones reach the target site through the bloodstream.
- Target sites are specific tissues or cells that have receptors for a particular hormone.
- Once a hormone binds to its receptor at the target site, it triggers a specific biological response or action.
- This interaction between the hormone and its target site is crucial for regulating various physiological processes in the body.

Test: Reaching the Age of Adolescence- 2 - Question 10

Which of the following is an asexual method of reproduction?

Detailed Solution for Test: Reaching the Age of Adolescence- 2 - Question 10

One method of asexual reproduction is binary fission. This process involves a single organism splitting into two new individuals.

  • Occurs in single-celled organisms like bacteria.
  • Involves the duplication of genetic material.
  • Results in two genetically identical cells.
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