Hydra is a small, freshwater organism that exhibits asexual reproduction through budding. In this process, a small outgrowth or bud forms on the body of the parent hydra. The bud grows and eventually detaches from the parent organism, becoming an independent individual. The budding process involves no fertilization, and the offspring is genetically identical to the parent.
What type of reproduction is observed in Hydra?
Answer: B) Asexual reproduction
What is the result of the budding process in Hydra?
Answer: B) Formation of new individuals genetically identical to the parent
Which of the following is a characteristic feature of asexual reproduction in Hydra?
Answer: B) New individuals are formed through a process called budding
Which of the following best describes the offspring produced by asexual reproduction in Hydra?
Answer: B) Genetically identical to the parent
In humans, sexual reproduction involves the fusion of male and female gametes (sperm and egg) during fertilization. The male gamete (sperm) is produced in the testes, while the female gamete (egg) is produced in the ovaries. Upon fertilization, a zygote is formed, which develops into an embryo. This process occurs in the female reproductive system.
What is the name of the process by which the male and female gametes fuse?
Answer: B) Fertilization
Where are the male and female gametes produced in humans?
Answer: C) Sperm in the testes, egg in the ovaries
What is formed when the sperm and egg fuse during fertilization?
Answer: A) A zygote
Which of the following is true about human sexual reproduction?
Answer: B) Sexual reproduction involves the fusion of haploid gametes
Vegetative propagation is a form of asexual reproduction in plants, where new plants are produced from vegetative parts like roots, stems, or leaves. For example, in potatoes, new plants are formed from eyes (buds) present on the tuber. Similarly, in strawberries, new plants grow from the runners (stems that grow along the ground).
What is vegetative propagation in plants?
Answer: B) A type of asexual reproduction
Which part of the potato is responsible for vegetative propagation?
Answer: C) Tuber (eyes)
Which of the following is an example of vegetative propagation in strawberries?
Answer: B) Runners
What is the main characteristic of offspring produced by vegetative propagation in plants?
Answer: B) They are genetically identical to the parent plant
In many aquatic animals like fish, external fertilization occurs. During the breeding season, the female releases her eggs into the water, and the male releases sperm over the eggs. Fertilization occurs outside the female’s body in the water, and the fertilized eggs develop into larvae.
Where does fertilization occur in fish?
Answer: C) Outside the female’s body, in water
What is the main advantage of external fertilization in aquatic organisms like fish?
Answer: B) Large number of offspring produced
Which of the following is a characteristic of external fertilization?
Answer: C) Both eggs and sperm are released into the environment
What type of environment is essential for external fertilization to occur?
Answer: D) Aquatic environment
In honeybees, parthenogenesis is a form of asexual reproduction in which unfertilized eggs develop into male bees (drones). Fertilized eggs develop into female bees (workers and queens). Parthenogenesis occurs naturally in bees, where males are produced from unfertilized eggs, and females arise from fertilized eggs.
What is parthenogenesis?
Answer: B) Development of an offspring from an unfertilized egg
In honeybees, what do unfertilized eggs develop into?
Answer: C) Male bees (drones)
What type of fertilization occurs in honeybees to produce female offspring?
Answer: D) Both fertilized and unfertilized eggs
Which of the following statements is true about parthenogenesis in honeybees?
Answer: A) Only males are produced through parthenogenesis