2022全国英才计划开始申报!今年入选难度会降低吗?
2023年全国“英才计划” 实施方案正式公布! 👇👇👇 相信各位同学和家长对英才计划并不陌生,每年都会在全国不同的城市选拔优秀的中学生,通过专业教师指导+高校科研资源+国内外交流平台三位...
2023年全国“英才计划” 实施方案正式公布! 👇👇👇 相信各位同学和家长对英才计划并不陌生,每年都会在全国不同的城市选拔优秀的中学生,通过专业教师指导+高校科研资源+国内外交流平台三位...
Eukaryotic Cells: Structure Cells can be divided into two broad types; eukaryotic and prokaryotic cells Eukaryotic cells have a more complex ultrastructure than prokaryotic cells The term ultrastru...
Cell Theory Until microscopes became powerful enough to view individual cells, no-one knew for certain what living organisms were made from A scientist called Robert Hooke is thought to be the firs...
Genetic Screening: Uses Some circumstances, e.g. in a pregnancy where there is a family history of a genetic disorder, may require individuals to determine if they have a particular allele present ...
一般来说,美国大学对学生的录取并没有特别明显的“偏好”,只是判断优秀的“标准”不完全相同而已。 但很多人也在好奇: “同是SAT1550,为什么有人录取藤校有人被淘汰” “八所藤校谁更爱标化,谁更爱奖项” ...... 纵...
Chi-squared Test The difference between expected and observed results in experiments can be statistically significant or insignificant (happened by chance) If the difference between results is stat...
Monohybrid Crosses Monohybrid inheritance looks at how the alleles for a single gene are passed on from one generation to the next Known information about the genotypes, phenotypes and the process ...
Pedigree Diagrams Family pedigree diagrams can be used to trace the pattern of inheritance of a specific trait, e.g. a genetic disorder, through generations of a family Pedigree diagrams can provid...
谁说国际赛事是理科生的天下?! 专属文科生的高含金量赛事来啦! IHBB国际历史挑战 不想再死记硬背枯燥史料? 不想再照本宣科记大事年表? …… 让这场刺激有趣的历史挑战, 开启你的文科赛事新大陆! 👇&...
Inheritance: Key Terms Genes & alleles A chromosome is a long DNA molecule which contains genes that code for several different proteins A gene is a length of DNA that codes for a single polype...
Mutations A gene mutation is a change in the sequence of base pairs in a DNA molecule that may result in an altered polypeptide Mutations occur continuously and spontaneously Errors in the DNA ofte...
DNA Replication Before a (parent) cell divides, it needs to copy the DNA contained within it Doubling the DNA ensures that the two new (daughter) cells produced will both receive full copies of the...
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