A stable DNA structure is formed when the two strands are a constant distance apart. This can only occur when a purine (A or G) on one strand is paired with a pyrimidine (T or C) on the other strand. The purine A can only pair up with the pyrimidine T and the purine G can only...
Once the DNA’s nucleotides have been copied, the mRNA can leave the nucleus of the cell and makes its way to the cytoplasm, where protein synthesis takes place. Here, complicated molecules called ribosomes ‘read’ the sequence of bases on the mRNA molecule. Individual amino acids, which co...
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: ...
the cell makes a copy of the gene, using not DNA but ribonucleic acid, orRNA. RNA shares a similar structure to DNA, except it contains only one strand, rather than two — so it looks like just one half of a ladder. In addition, while RNA has three of the four nitrogen bases in ...
But DNA is not the direct template for protein production. To make a protein, the cell makes a copy of the gene, using not DNA but ribonucleic acid, orRNA. RNA shares a similar structure to DNA, except it contains only one strand, rather than two — so it looks like just one half ...
What are the major uses for artificially synthesized DNA? Identify and name the following: The process by which the DNA in a cell makes an exact copy of itself. If a strand of DNA of sequence 5 -TGGACCTAGACC-3 is replicated, what is the newly synthesized DNA strand?
The very long strand of DNA which further contains many genes (hundreds to thousands) makes up a chromosome. The genes are arranged in a particular sequence and have a particular location on the chromosome (called its locus). In addition to DNA, chromosomes also contain man...
What is the basic repeating unit that makes up DNA and RNA? Which molecule is not found in DNA? a. uracil b. guanine c. adenine d. deoxyribose e. phosphate DNA is often referred to as a ladder. What pieces of the DNA molecule make up the sides of the ladder?
乐普丽虽然看上去很可爱 LePurimaybecute, 但已经一岁高龄的她 buthavingreachedthegrandoldageofone, 发育的可比一岁大的人类宝宝成熟得多 she'smuchmoredevelopedthanaone-year-oldhuman. 她和我有百分之九十九的基因是相同的 SheandIshare99%ofourDNA 但从出生之时起 andyetfromthemomentofbirth, 我们的生活就...
What are the components and structure of a DNA nucleotide? What is the 2' OH group in DNA? One strand of the DNA molecule runs 5' to 3'. The other strand runs 3' to 5'. This makes the two strands what? What is DNA sequencing technology?