Answer:
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1. What is the difference between sexual and asexual reproduction?
- Sexual reproduction is a type of reproduction that usually occurs in higher organisms like vertebrates and higher invertebrates. The offspring are produced by two parents of separate sexes (male and female) unlike asexual reproduction; asexual reproduction is the type of reproduction in which offspring are produced by the single parent. It does not involve any interaction or mating between the organisms of the same species and lacks the gamete formation, fusion of gametes or zygote formation.
2. What are gametes? What are the types of gametes?
- Gametes are reproductive cells or sex cells that unite during sexual reproduction to form a new cell called a zygote. Male gametes are called sperm and female gametes are ova (eggs). Sperm are motile and have a long, tail-like projection called a flagellum. Ova are non-motile and relatively large in comparison to the male gamete.
3. What is a zygote?
- A zygote, also known as a fertilized ovum or fertilized egg, is the union of a sperm cell and an egg cell. The zygote begins as a single cell but divides rapidly in the days following fertilization. The zygote’s single cell contains all of the 46 necessary chromosomes, getting 23 from the sperm and 23 from the egg.
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