Differentiate clearly between the terms "genome" and "chromosome" as they are used in prokaryotes. In what cases would these two words have the same meaning? Explain how the human and chimp genomes can be 99% alike in DNA sequence, yet produce...
How are phenotype driven by DNA (inheritance in offspring)? True or false? Linked genes are likely to be close together on the same chromosome. One of your friends has several brothers and sisters, each quite different in appearance, interests, and abilities, even though all have the same pa...
Type II topoisomerases are essential to all eukaryotic and prokaryotic organisms. They are highly conserved among species, and the eukaryotic enzymes appear to be direct descendents of ancestral bacterial proteins. View chapter Chapter DNA Topoisomerases: Biochemistry and Molecular Biology Advances in Phar...
Sequence motifs known to form these different structures are found throughout the genome, including promoter regions and the telomeric ends of chromosomes. The biological functions of unusual DNA structures are incompletely understood but are thought to be involved in cellular processes, including DNA ...
In summary, PDI-arrays have been extremely useful for the identification of the DNA sequences recognized by TFs in some model organisms, and these data are likely to be similar for conserved homolog proteins in other organisms. Moreover, PDI-array data can be used to refine ChIP data and, ...
The preference that different organisms show for one of the several codons that encode a particular amino acid. Translationally optimal codons are those that are recognized by abundant tRNAs. Within a phylogenetic group, the frequency of particular codons in a gene is highly correlated with higher ...
But here's the catch: our semisynthetic organisms in order to survive, need to be fed the chemical precursors of X and Y. 但关键是:我们的半合成生物为了存活,需要喂食X和Y两种化学前体细胞。 X and Y are completely different than anything that exists in nature. X和Y与自然界其他东西完全不同。
DNA, or deoxyribonucleic acid, is a powerful molecule that plays a fundamental role in storing and processing genetic information of all living organisms. In recent years, scientists have harnessed hybridization powers between DNA molecules to perform va
different DNA templates, specific DNA-Ag NCs were selected for the construction of the glyphosate sensor. The ultrasensitive detection of glyphosate was achieved by optimizing the buffer pH and Cu2+concentration. The sensing of glyphosate demonstrated a linear response in the range of 1.0–50 ng/...
A high variability of the number of chromosomes (2n and x) could be observed among the species of the genus Echeveria analyzed; 13 different chromosome numbers were found, and 2n = 54 and x = 27 were the most frequent. This variability was particularly observed in the diploid species that ...