To obtain samples for cytological comparison by vaginal lavage, use warmed saline to carefully triturate a small volume from a transfer pipet placed just at the vaginal opening. Caution here, too vigorous of trituration or placed too far inside the vagina can induce pseudopregnancy, so be gentle...
parents,because we get some of their DNA to make our own.People have been trying to understand the human body for a long time.In I860,Mr Mendel discovered why we look the same as other people in our family.It is because of small things called "genes"(基因) in our body.In 1953,two...
Although parasite-host co-speciation is a long-held hypothesis, convincing evidence for long-term co-speciation remains elusive, largely because of small n... WM Switzer,M Salemi,V Shanmugam,... - 《Nature》 被引量: 559发表: 0年 Relevance of metabolic polymorphisms to human carcinogenesis: ...
Small changes to DNA that were once considered innocuous enough to be ignored are proving to be important in human diseases, evolution and biotechnology
一旦他们形成两倍 helices,象 32-nt 戒指那样的小得多的 DNA minicircles 是高度僵硬的,因此,他们缺乏灵活性形成细微地订的 nanotubes.在 52-nt minicircles 包括的 nanotubes 的情况中,大多数 nanotubes 长是 800 nm ,20%直到 2 μm ,而 nanotubes 50 基础对创作了,子单元和 48 底与 DX 配对子单元在...
Shaw HM, McCarthy WH. Small-diameter malignant melanoma: a common diagnosis in New South Wales, Australia. J Am Acad Dermatol. 1992;27:679–82. ArticleCASPubMedGoogle Scholar Kamino H, Kiryu H, Ratech H. Small malignant melanomas: clinicopathologic correlation and DNA ploidy analysis. J Am...
S. Small, R. Kraut, T. Hoey, R. Warrior, M. Levine Transcriptional regulation of a pair-rule stripe in Drosophila Genes Dev, 5 (1991), pp. 827-839 Crossref View in Scopus Google Scholar This paper discovers and dissects the cis-regulatory sequence information for the expression of the...
DNA polymerases were named for their function of catalysing DNA replication, a process that is necessary for growth and propagation of life. DNA involving Watson–Crick base-pairing can be synthesized with high fidelity, the structural and mechanistic origins of which have been investigated for many...
To obtain samples for cytological comparison by vaginal lavage, use warmed saline to carefully triturate a small volume from a transfer pipet placed just at the vaginal opening. Caution here, too vigorous of trituration or placed too far inside the vagina can induce pseudopregnancy, so be gentle...
After 34 years and one last chance at solving the case with a speck of DNA too small to see with the human eye, Detective Chuck Christensen's daring bet paid off big. Det. Lt.Chuck Christensen: And to know that we had come to this point was simply amazing. ...