Upon the incidence of sexual reproduction, the process of fertilization takes place, which involves the fusion of cells referred to as gametes; the male and female gametes fuse to produce a single-celled structure known as the zygote. Gametes are characterized by the term haploid, which means th...
Expression of Cd9 enhances membrane fusion between muscle cells and promotes viral infection in some cells. Fertilization also involves membrane fusion, between gametes. In mammals, the sperm binds to microvilli on the egg surface, and sperm-egg membrane fusion first occurs around the equatorial ...
Choose the correct answer: Gametes are generated by a. mitosis b. meiosis c. fusion d. budding In what type of cell does each form of cell replication occur (mitosis and meiosis)? What are the purposes of each form of cell replication? Is reproduction sexual or ...
Various systems by using electric pulse, calcium, or polyethylene glycol have been developed in the past decade for the in vitro fusion of plant gametes. T... Xiong,Bo,Peng,... - 《Cell Research》 被引量: 15发表: 2005年 Topography of corpuscular mechanoreceptors in the shoulder joint regio...
etc. once pollen gets transferred to the stigma the male gametes from pollen grains release and fuse with the egg in the ovule to form a zygote. this process of fusion of gametes is called fertilization. the zygote thus formed, divides and develops into an embryo, and later into a seed....
types of fertilization in animals double fertilization double fertilization is a process of fertilization characterized by the fusion of a female gametophyte with two male gametes. in this mechanism, one sperm cell fuses with the egg-producing zygote, and the other fuses with the two polar ...
aFusion of the male and female gametes leading to zygotic activation is one of the most decisive events in the life cycle of sexually reproducing organisms 导致zygotic活化作用的男性和女性配子的融合是其中一个最果断的事件在性再生产的有机体的生命周期[translate] ...
Successful higher plant reproduction depends upon the development of functional reproductive structures and viable gametes in the flowers, transfer of viable pollen onto a receptive and compatible stigma, pollen germination, directed pollen tube growth to the ovule, gamete delivery and nuclear fusion. In...
The male gametes , produced by reproductive structures called antheridia, are free-swimming sperm cells that need water to transport them to the female gametes, which are enclosed within structures called archegonia. Because of the need for water, bryophytes are especially common in wet habitats ...
A single cell grows into a multicellular organism by the process of: (a) mitosis (b) meiosis (c) fertilization (d) duplication Choose the correct answer: Gametes are generated by a. mitosis b. meiosis c. fusion d. budding An organism produces game...