The individual which possess small tadpole-like motile cell, which are called sperm, can be regarded as a male and the individual which possess round larger type of gamete, called ovum, can be regarded as female. Sperm are motile and have a long, tail-like projection called a flagellum.
What are types of gametes?
In certain organisms, like humans, there are two morphologically distinct types of gametes: (1) the male gamete (i.e. sperm cell) and (2) the female gamete (i.e. ovum).
What are the three 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.
What is meant by Anisogamy ‘?
Definition. Anisogamy can be defined as a mode of sexual reproduction in which fusing gametes, formed by participating parents, are dissimilar in size.
What is Garmete?
Encyclopædia Britannica, Inc. gamete, sex, or reproductive, cell containing only one set of dissimilar chromosomes, or half the genetic material necessary to form a complete organism (i.e., haploid).
What is motile and non motile gametes?
motile- that have cilia like structures and can move…… non-motile- do not show any movement.
What are three types of gamete fusion?
a) Three types of gamete fusion are :
What is gamete fusion?
“Fusion of gametes” means the fusion of the nucleus of male gamete (sperm) with the nucleus of the feminine gamete (egg). This process is additionally referred to as fertilization.
What is spermatogenesis and oogenesis?
Gametogenesis, the production of sperm and eggs, takes place through the process of meiosis. … The production of sperm is called spermatogenesis and the production of eggs is called oogenesis.
What is the female gamete called?
The male gametes are called sperm and the female gametes are called eggs. Human gametes are haploid , which means that each egg or sperm contains 23 chromosomes . When an egg and a sperm cell fuse, they create a zygote that is diploid and has 46 chromosomes.
Are Anisogamous gametes motile?
Anisogamy is the form of sexual reproduction that involves the union or fusion of two gametes, which differ in size and/or form. … Both gametes may be flagellated and therefore motile. Alternatively, both of the gametes may be non-flagellated. The latter situation occurs in some algae and plants.
Are Isogamous motile?
Isogamy:Bothmaleandfemalegametesareeithermotileorimmotileinisogamy. Oogamy:Eggcellisimmotileandspermcellismotileinoogamy. Anisogamy:Anisogamyevolvesfromisogamy.
In which algae non-motile male gametes are formed?
In algae, haploid cells act directly as gametophytes as they produce gametes. Option A Blue green algae: Blue green algae or Cyanophyceae reproduce through simple division or fragmentation or non-motile spores. Also, they do not reveal any motile phase during the life cycle.
What is the other name for gametes?
A reproductive cell (sperm in males or eggs in females), having only half of a complete set of chromosomes. The reproductive cell or gamete of the male. Noun. ▲ A reproductive cell (sperm in males or eggs in females), having only half of a complete set of chromosomes.
What is fusion of male and female gametes?
The term used to describe the male and female gametes fusion is fertilization. Fertilization can be described as the fusion of the male gametes (pollen) with the female gametes (ovum) to form a diploid zygote.
What does the term Gametogenesis mean?
gametogenesis, in embryology, the process by which gametes, or germ cells, are produced in an organism. The formation of egg cells, or ova, is technically called oogenesis, and the formation of sperm cells, or spermatozoa, is called spermatogenesis.