So, the correct answer is A.Note:Genes are contained in chromosomes. These in the cell nucleus. A single chromosome contains hundreds to thousands of genes. Every normal human cell comprises 23 pairs of chromosomes that mean a total of 46 chromosomes. A trait is any gene...
结果1 题目 40 What is an advantage of genetic engineering? B A genes spreading to nearby organisms B reduced use of insecticides C reduction in biodiversity D unexpected side effects in organisms 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
根据第一段倒数第二句“Their discovery enabled other scientists to discover the thousands of circadian times that control our health,our genes and even when we should have treatments.”可知,他们的发现使其他科学家得以发现成千上万的控制我们的健康、基因,甚至我们应该何时治疗的生物钟时间。所以答案选A。
Your eye colour, how tll you are and the size of your nose all come from the special information inyour genes that makes you differentfrom everyone else.(不!你眼睛的颜色,你的身高和鼻子的大小都来自于你基因中的特殊信息,这些信息使你与众不同)"可知,空处应该是一般疑问句。D选项"Is there ...
解析 [A. A gene is a special stretch of DNA that codes for something.; 答案: [A. A gene is a special stretch of DNA that codes for something.; A. Each one of our cells contains 46 strands of DNA.; A. Genes make proteins.]...
What is the main idea of the passage? A. Genes have no influence on our health. B. Genetic testing is always accurate. C. Genetic testing has both benefits and risks. D. Genetic testing should be banned. 相关知识点: 试题来源:
People have different ideas.These days,most people agree that the answer to the question is yes.Recent studies have shown that genes especially influence our self-control and our sense of purpose.What is a sense of purpose?If a person really wants to complete something a...
One of the main factors in evolution is that the genes themselves change by mutation. The actual heredity carrying parts of the chromosome are made from a substance known as DNA, an abbreviation for deoxyribose nucleic acid. In DNA, there are component parts that can be arranged in different ...
What is DNA? A. It is a kind of gene、 B. It is a substance that makes up genes、 C. It is the basic unit of heredity、 D. It is a measure to protect crime、 E. 细节理解题。根据文章第二段第一句可知。 相关知识点: 试题来源: 解析 答案与解析: ...
A. Gene editing is regarded as the perfect way to treat birth defects. B. There is still a long way to go to fully understand human genes. C. Gene editing could help enhance human intelligence in the near future. D. Scientists are pessimistic (悲观的) about the future of gene E. dit...