1. Which type of reproduction involves only one parent and gives rise to offspring identical to the parent?
Answer:
Explanation:
Asexual reproduction involves only one parent and produces offspring that are genetically identical to the parent.
2. In which of the following organisms does binary fission take place?
Answer:
Explanation:
Amoeba reproduces by binary fission, wherein a single cell divides into two identical daughter cells.
3. The type of cell division associated with sexual reproduction is:
Answer:
Explanation:
Meiosis is a specialized cell division that results in the formation of gametes with half the number of chromosomes.
4. Which of the following is an example of external fertilization?
Answer:
Explanation:
Frogs reproduce through external fertilization, where eggs are fertilized outside the female's body.
5. Spore formation is a common method of asexual reproduction in:
Answer:
Explanation:
Many fungi reproduce asexually through spore formation.
6. In plants, the structure responsible for producing male gametes is:
Answer:
Explanation:
The anther, a part of the stamen, produces pollen grains that contain male gametes.
7. Which among the following is a viviparous animal?
Answer:
Explanation:
Viviparous animals give birth to live young ones. Humans are viviparous.
8. The transfer of pollen grains from the anther to the stigma of the same flower is called:
Answer:
Explanation:
Self-pollination occurs when pollen is transferred to the stigma of the same flower or another flower of the same plant.
9. Parthenogenesis is a type of reproduction in which:
Answer:
Explanation:
Parthenogenesis is a unique form of reproduction where offspring develop from unfertilized eggs.
10. The process of growth and development of an embryo inside a seed is called:
Answer:
Explanation:
Germination is the process by which an embryo develops into a seedling.
11. In mammals, the fetus is connected to the uterus through the:
Answer:
Explanation:
The umbilical cord connects the fetus to the placenta, facilitating nutrient and waste exchange.
12. Fragmentation is a common method of reproduction in:
Answer:
Explanation:
In fragmentation, an organism breaks into fragments, and each fragment develops into a new individual. It's common in algae.
13. Which plant structure is responsible for producing female gametes?
Answer:
Explanation:
The ovary contains ovules, which produce female gametes.
14. Which of the following is a hermaphrodite animal?
Answer:
Explanation:
Hermaphrodite animals possess both male and female reproductive organs. Earthworms are hermaphroditic.
15. Vegetative propagation in plants refers to reproduction using:
Answer:
Explanation:
Vegetative propagation involves reproducing plants using non-reproductive parts like stems, roots, or leaves.
16. Which of the following animals reproduce by laying eggs?
Answer:
Explanation:
The platypus is one of the few mammals that lay eggs.
17. The primary function of the flower in plants is:
Answer:
Explanation:
Flowers facilitate the reproductive process in plants.
18. In which organism does regeneration, a mode of asexual reproduction, prominently occur?
Answer:
Explanation:
Starfish can regenerate lost arms, and in some cases, an entire starfish can regenerate from a single arm.
19. The union of male and female gametes is called:
Answer:
Explanation:
Fertilization is the process where male and female gametes unite to form a zygote.
20. Which of the following is a method of asexual reproduction in plants?
Answer:
Explanation:
Grafting is a technique where tissues from one plant are attached to the tissues of another, facilitating asexual reproduction.