DNA是分子,是基础.基因由一串DNA组成.染色体又由很多很多DNA(包括很多基因)外加蛋白质构成. DNA就像是字母 而基因就是词 染色体就是句子. 其实这个比喻不恰当.应该这样比:一根长绳子(DNA),很长.中间的某一节(基因).把这根绳子绕在罐头上,绕很多罐头,绕完后在仔细堆放好,就是染色体了. 分析总结。 把这根绳...
DNA是分子，是基础。基因由一串DNA组成。染色体又由很多很多DNA(包括很多基因）外加蛋白质构成。DNA就像是字母 而基因就是词 染色体就是句子。其实这个比喻不恰当。应该这样比：一根长绳子（DNA），很长。中间的某一节（基因）。把这根绳子绕在罐头上，绕很多罐头，绕完后在仔细堆放好，就是染色体了。
normal cell是体细胞，nucleus是细胞核，chromosome 是染色体，DNA molecule contains many genes的意思是DNA分子包含很多基因 allele是等位基因 讲明白一点：体细胞就是非生殖细胞，人体“体细胞”，除了精细胞和卵细胞其它都是normal cell。体细胞和生殖细胞的区别就是体细胞有46条染色体，生殖细胞（精子卵子...
那么gene（基因)就是还有遗传信息的序列，也就是说，DNA还有RNA是由无数基因组成的，allele是等位基因，...
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 many other chemical components. These chemicals inf...
Using a non-parametric statistical test for biased gene loss between subgenomes, we infer that all Dioscorea share an ancient paleo-allotetraploidy, which was followed by species-specific chromosome rearrangements. We use genomic and genetic resources to identify nine QTL for anthracnose resistance and...
the DNA molecule is highly stable, allowing it to act as a template for the replication of new DNA molecules, as well as for the production (transcription) of the relatedRNA(ribonucleic acid) molecule. A segment of DNA that codes for thecell’ssynthesis of a specificproteinis called agene...
Men and women differ in circulating lipids and coronary artery disease (CAD). While sex hormones such as estrogens decrease CAD risk, hormone replacement therapy increases risk. Biological sex is determined by sex hormones and chromosomes, but effects of
We determined the DNA sequence of a 2,232-bp region immediately upstream of the pcm gene at 59 min on the Escherichia coli chromosome that encodes an L-iso... Li,J K,Ichikawa,... - 《Journal of Bacteriology》 被引量: 87发表: 1994年 Variation in chromosome numbers and nuclear DNA cont...
glaucus and P. canadensis. We show that P. appalachiensis' Z-linked genes associated with a cooler thermal habitat were inherited from P. canadensis, whereas its W-linked mimicry and mitochondrial DNA were inherited from P. glaucus. Furthermore, genome-wide AFLP markers showed nearly equal ...