2022USABO生物竞赛怎么报名 国内考生要登阿斯丹官网

2021年度IGEM竞赛的结果已经出了，有错过这场考试的小伙伴想知道2022上半年有没有还有没有同类的biology比赛，那大家可以关注下4月份考试的USABO生物竞赛，（也叫BIO USACN）。考好它，也能助力G5藤校之路哟。

（点击查看igem比赛啥时候组队比较好）

USABO生物竞赛含金量

美国生物奥赛的主办方为美国CEE为挑选和培训生物奥赛国家队参加世界生物奥林匹克竞赛 (IBO)。美国生物奥赛成为美国学术性和影响力兼备的理工科竞赛之一，每年超过 10000 名美国孩子参加。

2016 年，ASDAN 中国办公室与 CEE 合作，首次将美国生物奥赛引入中国。2020年，共有239所国际高中和重点中学的学生代表参加该项赛事。

💫 竞赛优势 

作为IBO美国预选赛，赛事难度和含金量都较高，在国际相关领域内的认可度也不容小觑。

部分知识点涵盖大学课程，出题难度也高于高中生物课程水平，备考学习经历能够帮助学孩子更好地应对biology课程。

对于计划申请医学、生物医学、生物基因的相关学科的申请者，在高中阶段能够在美国生物奥赛中取得优异成绩的，无疑增加了极大的申请优势。

📚 考试范围 

USABO生物竞赛考试内容基本包含了美国生物课程的所有内容：细胞生物学、植物解剖学及生理学、动物解剖学及生理学、动物行为学、遗传与进化、生态学、生物分类学。

⚠ 竞赛规则 

个人形式参赛，英语卷笔试，不设施实验考试。需要完成50道选择题，考试时长为50分钟。

📆 竞赛时间 

报名截止时间：2022年3月30日

考试时间：2022年4月9日（周六）上午10:30-11:20

USABO生物竞赛怎么报名？

⚠中国内地考生需要通过ASDAN China注册报名。

官方网址：

http://www.asdanchina.com.cn/bio/

USABO真题精选

（以下为2013年选择题，大家可以先练练手）

1 Which statement is true about enzymes? Enzymes
A.Are made up ofa base containing nitrogen,phosphate,and ribose

B.Have activity that is independent of temperature and pH.

C.Lose some or all of their normal activity when their 3-D structure is disrupted.

D. Provide the activation energy needed to activate a reaction. E.Work once only and then are destroyed.

2.You have a multicellular organism that reproduces asexually by fission. When you excise

a ~10,000 cell portion of its body, both the original organism and the excised portion grow into fully formed, healthy organisms. You take one of the offspring and repeat the procedure for one hundred and twenty-three generations. Each time, the resulting organisms are healthy. What must be true of the nuclei of this species?
A.The cells contain plasmids.
B.The cells have multiple forms of DNA polymerase.
C.The cells have the majority of their genome stored in circular DNA.

D.The cells contain active telomerase. E.The cells contain active fissonase.

图片来自网络

2013USABO生物竞赛真题

3.Which of the following correctly describes how the lifespan of a protein is regulated?

A.The part of the sequence coded for by the UTR tags it for destruction.
B.Giant protein complexes called ubiquitins destroy proteins after they have remained in the
cell for a certain time.
C
Proteins are methylated over time;heavily methylated proteins are destroyed by proteasomes
D. Proteins are tagged with ubiquitins,which are recognized by proteasomes;the proteasomes
destroy the proteins.
E Proteins tagged with methyl groups are destroyed by ubiquitins.

4.Ofthe following amino acids,which is least likely to form strong interactions with other
amino acids that contribute to the tertiary structure of a given protein?
A.Histidine

B.Glutamate

C.Cysteine

D.Glycine

E.Serine
5.Thymine dimers arise when two adjacent thymine bases become covalently linked. This
interferes with normal DNA geometry and will cause replication errors. Which of the following agents is the primary cause of the thymine dimers?

A.Chemical mutagens
B. Beta emissions from radioactive decay C.Gamma rays D.X-rays E.UVrays
6.Which of the following oligonucleotides would have the highest melting point when
paired with the proper complementary strand?
A5-AAAAAAAA-3

B5-ATGCATGC3

C.5-CGCGCGCG-3

D.5-TTTTGGGG-3

E.5-TATATATA-3

怎么样？看完以上题目，觉得USABO生物竞赛对你来说难不难呢？如果觉得需要帮助，可以点击预约试听【唯寻国际竞赛辅导班】——

根据学员进度定制课程

介绍联想、类比、归纳、转化、试误等答题技巧

整合大量竞赛全真题库

进行模块化学习

线下、线上班型都有哟

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