In GIFT, females who cannot produce ovum, but can provide suitable conditions for the fertilisation of ovum, are provided with ovum from a donor. GIFT − It stands for gamete intra fallopian transfer. In this technique, embryos with more than 8 blastomeres are transferred into the uterus. IUT − It stands for intra uterine transfer. The zygote so formed is transferred into the fallopian tube at the 8 blastomeres stage. In ZIFT, the sperm from a donor male and the ova from a donor female are fused in the laboratory. ZIFT − It stands for zygote intra fallopian transfer. The embryo which is obtained after fertilization is implanted in the uterus of another female who is called the surrogate mother. The collected oocyte is fertilized with the sperm of her husband in a test tube. In this technique the donor of the oocyte is the women itself who has problem in implanting the embryo in the uterus. Surrogacy- This is a technique which is used for women who face problem in implantation of embryo in uterus. IVF is one such form of ART which includes different methods that can be a boon for childless couples: Many couples all over the world are unable to produce children due to various reasons. These couples can be assisted to have children through techniques called assisted reproductive technologies (ART). The new yeast cell then grows and becomes mature to form more yeast cells.ī. These buds gradually grow in size and get detached from the parent cell to form a new yeast cell. During this process, small bulb-like projections (called buds) start coming out of the yeast cell. For example, yeast reproduces asexually through the method of budding. This developing bud detaches from the parent body and the daughter individual develops further. These amoebules are released together when the conditions turn favourable.īudding − In this method, a bud develops as an outgrowth from parent body. Inside the cyst, the nuclei undergo repetitive nuclear division followed by cytoplasmic division and result in the formation of amoebules. It covers itself in a protective covering and forms a structure known as cyst. Amoeba shows multiple fission under adverse conditions. In this method, the parent microbe divides into many daughter microbes. Multiple fission − Multiple fission is also seen in Amoeba. It involves two main processes- gamete formation and fertilization. Sexual reproduction occurs in various organisms like microbes, plants, animals and humans. New individual formed by this method is genetically different from parents.Īsexual reproduction occurs in different individuals by various methods like binary fission, multiple fission, budding, fragmentation, regeneration, vegetative propagation, spore production, etc. New individual formed by this method is genetically identical to parents. This reproduction occurs with the help of both meiosis and mitosis. This reproduction occurs with the help of mitosis only. Male and female parent are necessary for sexual reproduction. Reproduction that occurs with the help of germ cells is called sexual reproduction.īoth the parents are not required for asexual reproduction. Reproduction that occurs with the help of somatic cells is called as asexual reproduction.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |