differentiate between sexual reproduction and asexual reproduction
Answers
Answer:
eproduction Process of creating new individual using two parent organisms
Asexual reproduction Process of creating new individual using one parent organism
Offspring New organism that results from reproduction
Gamete Sex cell (in males: sperm; in females: eggs)
Fertilization The joining of gametes to form a new organism
Zygote Cell formed during the fusion of two gametes
Types of reproduction
There are two major forms of reproduction: sexual and asexual.
Sexual reproduction
Sexual reproduction requires two parents. Each parent contributes a gamete - a sex cell that has half of the normal DNA of a regular body cell. In males, the gametes are sperm and in females, the gametes are eggs.
When these two gamete combine during fertilization, the result is a zygote, which then continues to develop into an embryo.
Overview of the process of sexual reproduction.
Overview of the process of sexual reproduction.
Image credit: OpenStax
Asexual reproduction
Asexual reproduction requires only one parent.
There are many types of asexual reproduction. Four major types are:
1) Binary fission: Single parent cell doubles its DNA, then divides into two cells. Usually occurs in bacteria.
Prokaryotic cell undergoing the process of binary fission
Prokaryotic cell undergoing the process of binary fission
Prokaryotic cell undergoing the process of binary fission. _Image modified from Wikimedia, (CC BY-SA 3.0)._
2) Budding: Small growth on surface of parent breaks off, resulting in the formation of two individuals. Occurs in yeast and some animals (like the hydra below).
Hydra reproduce asexually through budding
Hydra reproduce asexually through budding
Hydra reproduce asexually through budding. Image credit: Boundless
3) Fragmentation: Organisms break into two or more fragments that develop into a new individual. Occurs in many plants, as well as some animals (like coral, sponges, and starfish).