ligamenta n. [解]韧带 Annularia 轮叶属 annularia n.轮叶属 trachealis 气管的 game n. 1.游戏 2.运动,比赛 3.一场,一局,一盘 4.运动会 5.猎物,野禽;野味 6.比赛时用的手法;比赛技巧 7.(学校的)体育课,体育活动 8.娱乐;消遣; gamecock n. 斗鸡 gametangiogamy 配囊融合 gamete n...
These egg activation methods, as expected, induced rises in intracellular calcium levels and also triggered the coordinated release of zinc into the extracellular space in a prominent "zinc spark." The ability of the gamete to mount a zinc spark response was meiotic-stage dependent. Moreover, ...
Egg activation refers to events required for transition of a gamete into an embryo, including establishment of the polyspermy block, completion of meiosis, entry into mitosis, selective recruitment and degradation of maternal mRNA, and pronuclear development. Here we show that zinc fluxes accompany hu...
What type of stem cells are isolated from the inner mass of pre-implantation embryos? a. adult stem cells b. pluripotent stem cells c. multipotent stem cells d. none of the above Another name for a fertilized egg is a(n): a)...
reacting with and weakening the outer layer of the ovum. As this acrosomal reaction progresses, the head of the spermatozoon fuses with the ovum's cell membrane and releases its contents into the ovum. The nuclei of the sperm and ovum fuse, resulting in a zygote from which a new organism ...
Is DNA a heredity substance or not? Fertilisation: Fertilisation of an egg by a sperm represents the formation of a zygote and the beginning of a new life. The egg and sperm are both haploid cells. Answer and Explanation: Learn more about this topic: ...
Spermatazoa are the male gamete,meaning they are the cells that fuse with the egg in fertilization giving rise to the embrion and future baby.
The gametophyte is a stage in the plants life cycle that undergoes alternation of generations.The primary job of gametophyte is Gamete production.
A lily is an insect-pollinated flower.A B(a) Name the structures labelled A and B.(2)A B(b)Describe what is meant by the term insect-pollination.(c)Give two ways in which the structure of a wind-pollinated flower would differ from the lily flower shown in the diagram.2)12(d)...
If you have an egg donated by a full sibling, you are restoring your own gene pool because all your sibling’s eggs received genes from the same parents’ gene pools — even if you and your sibling look different. This is called familial gamete donation. 5. You are not just a...