In plant genetics, the part of a cell that contains the genetic information (DNA) is called _. A. cytoplasm B. gene C. chromosome D. mitochondrion 相关知识点: 试题来源: 解析 C。解析:本题考查植物遗传学中的基本概念。染色体(chromosome)是细胞中包含遗传信息(DNA)的部分。细胞质(cytoplasm)是...
DNAisthegenetic(遗传的)materialfoundinalllivingthings.It'sunique(独一无二的),soit'susuallyusedtoidentify(确认)peopleoranimals. (1)___PolicecantakeaverysmallpieceofDNAandfindoutwhoitisfrom.Now,anewstudyshowsthatcriminalscouldsoonbecaught,usingtheDNAfromcat'shairiftheyarecatowners.UsingcatDNA,scientist...
根据第二段第二句“It not only decides your gender and appearance, but also tells you about your family history, as well as your relations with people in other parts of the world.”可知,A、B、D选项正确。根据第一段第三句“Your DNA is 99.5% the same as everyone else on the planet.”...
Why is DNA found in all parts of the body similar but RNA is not? Human Body: The human body is defined as a physical substance that is composed of living cells and extracellular materials. There are three main types of the human body that are ectomorph, mesomorph, and endo...
B. It determines all physical characteristics. C. It can be easily changed. D. It is unique to E. ach individual. 相关知识点: 试题来源: 解析 D。DNA 对于每个个体是独特的。选项 A 不是所有生物的 DNA 都相同;选项 B DNA 不是决定所有物理特征;选项 C DNA 不是很容易改变。反馈 收藏 ...
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 scientists,Watson and Crick,found out that those small parts are really messages.They're written in the DNA with a special language.In 1961,another ...
In a eukaryotic cell, some of the cell organelles like plastids and mitochondria are partially autonomous, as they have their own DNA molecule which resembles the prokaryotic bacterial chromosome. However, a major amount of DNA is present in the nucleus as the chromatin material. DNA of chromatin...
A. The whole DNA sequence responsible for synthesis of a functional protein or RNA molecule. B. Polynucleotide sequence of DNA molecule that contains specific genetic information. C. The minimal functional unit of genetic material. D. The gene sequence consists of continuously arranged triplet codes...
Scientists have found DNA in rain, soil, and honey, and even in water. Air is everywhere, so it's easy to take samples from it. It's easier to collect DNA from the air than people thought. At a zoo in Cambridgeshire, a biologist named Elizabeth Clare from York University in Toronto ...
摘要: PROBLEM TO BE SOLVED: To detect bacteria belonging to the genus Mycoplasma and the genus Ureaplasma by performing a PCR method using a specific primer, and to identify the species of the bacteria by carrying out a molecular system analysis based on a base sequence in a specific region....