题目(a) What happens to a sperm and an egg during fertilisation? [1]The nucleus of a sperm fuses with the nucleus of an egg.___ 相关知识点: 试题来源: 解析 The nucleus of a sperm fuses with the nucleus of an egg. 反馈 收藏
What is IUI and who may it be suitable for? Intrauterine insemination (IUI) is a fertility treatment involving artificial insemination where sperm are placed directly into the uterus around the time your ovary releases one or more eggs to be fertilised. IUI with my or my partner's own sperm...
DNA was first observed by Swiss biochemist Friedrich Miescher in 1869, according to a paper published in 2005 in the journalDevelopmental Biology. Miescher used biochemical methods to isolate DNA — which he then called nuclein — from white blood cells and sperm, and determined that it was ver...
presented here as a vehicle for discussion rather than a robust hypothesis. An obvious point of contention is the status of the earliest hominins, known from only small isolated samples; relationships both among these species and to the later hominins are not yet resolved. And, while other bra...
Answer and Explanation:1 Haploid:Haploid cells is consist of only one set of chromosomes (n). The most frequent sort of haploid cell is gametes, also known as sex cells... Learn more about this topic: Alternation of Generations | Definition, Stages & Diagram from...
In order to best understand sperm's role in the reproductive process and its passage, it is best to be familiar with the creation of male gametes or sperm also known as spermatogenesis. Being familiar with the reproductive anatomical terminology of both the male, as...
The largest cell isovumin the human body. The ovum also called egg cell is the reproductive cell in the female body. Ovum is 20 times bigger than the sperm cells and has a diameter of about 0.1 mm. What are the 7 Specialised cells?
It's most likely you will have fraternal triplets, which form when three eggs are fertilized by three different sperm. If this is the case, each of your babies will be as alike (or different) as any other groups of siblings can be. Each baby will have his or her own appearance, perso...
doi:10.1111/j.1600-0897.2009.00758.xRichard BronsonBlackwell Publishing LtdBRONSON R (2009). What the sperm says and the egg hears - a tale of two proteins and more. Am J Reprod Immunol 62: 357-364.
That pH change occurs because the sperm release protons (acids are compounds that will donate a hydrogen ion — also known as a proton — to another compounds, called a base). "The concentration of protons inside the [sperm] cell is 1,000 times higher than outside," said Yuriy Kirichok...