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: ...
【解析】1.根据全文可知本文主要讲DNA结构的发现。2.根据"James Watson and Francis Crick discovered DNA's shape in 1953."可知答案。3.根据"Franklin's research assistant was showing them to Waston in secret."可知答案。4.根据"In her lecture, Franklin mentioned thatshe believed DNA's structure was ...
contains our genes(基因). Parentspass on characteristics(特质)to their children through their genes. DNAis two helixes(螺旋线), ed together. JamesWatson and Francis Crick discovered DNA's shape in 1953. Thetwo men were awarded the Nobel Prize for their work. Thetruth is that another...
Where is DNA located in the prokaryotic cells? Prokaryotic Cells: Prokaryotic cells form unicellular organisms, unlike eukaryotic cells, which form multicellular organisms. Prokaryotes have less DNA compared to eukaryotes and contain circular DNA instead of compact chromosomes. Examples of prokaryotes includ...
虽然我们对DNA有了很多了解,但我们尚未完全理解所有基因及其功能。其他选项都正确地描述了DNA的功能:A选项说明基因决定遗传特征,C选项说明DNA包含构建和运行身体所需的信息,D选项说明DNA指导蛋白质合成。 126. 选项D正确。DNA既可以是好的,也可以是坏的。DNA的正常功能是生命的基础,但其变异可能导致疾病。其他选项...
How did we learn that DNA is the Genes Are Made of DNA Genes Are Made of DNA Genes Are Made of DNA Genes Are Made of DNA DNA replicationMade, Genes Are
Hint:Chromosomes are made up of chromatin. Chromatin made up of the threads of DNA forms the structure of chromosomes. The DNA gets condensed to form chromosomes. Genes are the segments of DNA. The code for proteins. This means chromosomes are made up of DNA which contain...
Summary The genetic mechanisms involved in sex differentiation are poorly understood, and progress in identification of the genes involved has been slow. The fortuitous finding of chromosomal rearrangements in association with a sex-reversed phenotype has led to the isolation of SRY and SOX9, both sho...
DNA is a substance(物质) that makes up genes. Everything alive has genes. Plans have genes. Animals have genes. You have genes. Genes are the basic units of heredity(遗传). Heredity means all the characteristics you inherit from your parents. You get your genes from your parents. You inh...
DNA is a substance that makes up genes.Everything alive has genes. Plants have genes. Animals have genes. You have genes. Genes are the basic units of heredity. Heredity means all the characteristics you inherit from your parents. You get your genes from your parents. You inherit half of ...