How do Organisms Reproduce?

Topics in this chapter

• Reproduction Basics and Modes
• Asexual Reproduction in Organisms
• Sexual Reproduction in Flowering Plants
• Human Reproductive Systems and Puberty
• Human Fertilization and Pregnancy
• DNA Copying, Variation and Inheritance
• Reproductive Health and Contraception

Cheat sheet

Practice questions

1. Question 1Q-34FF72

   Which of the following is the primary reason why sexual reproduction results in greater diversity than asexual reproduction?

   1. A.It involves the fusion of identical gametes from the same parent.
   2. B.It involves the combination of DNA from two different individuals and crossing over during meiosis.
   3. C.It occurs at a much faster rate than cell division in asexual reproduction.
   4. D.It produces clones that rapidly adapt to environmental changes.
   See the answer and solution
2. Question 2Q-5911C2

   In Spirogyra, reproduction takes place by which of the following methods?

   1. A.Regeneration
   2. B.Fragmentation
   3. C.Budding
   4. D.Spore formation
   See the answer and solution
3. Question 3Q-D301C1

   Which of the following parts of a flower develops into a fruit after fertilization?

   1. A.Ovule
   2. B.Stamen
   3. C.Ovary
   4. D.Pollen grain
   See the answer and solution
4. Question 4Q-B70FD3

   Which of the following contraceptive methods also provides protection against sexually transmitted diseases (STDs)?

   1. A.Copper-T
   2. B.Oral contraceptive pills
   3. C.Condoms
   4. D.Tubectomy
   See the answer and solution
5. Question 5Q-A67F3B

   During the regeneration of Planaria, how does the organism regrow its lost body parts?

   1. A.Through specialized reproductive spores stored in the epidermis.
   2. B.Through the rapid division and differentiation of specialized cells into various tissue types.
   3. C.By fusing fragments with neighboring individuals in the environment.
   4. D.By converting mature muscle cells directly into nerve cells without division.
   See the answer and solution