27、recombination[ri'kɑmbə'neʃən]n.重组28、geneticlinkage遗传连锁；基因连锁 29、physicallocation实际地点；实际位置 30、chromosome[‗kroməsom]n.染色体31、cytogenetic[saɪtodʒə'nɛtɪk]adj.细胞遗传的 Definition1940s:Geneasablueprintforaprotein BeadleandTatum(1941),whostudied...
Today, scientists no longer speak of the sequence hypothesis. Instead, the notion thatnucleotidesequences (genes) directly dictate amino acid sequences is known ascolinearity(Figure 1). Scientists have confirmed that colinearity is a regular occurrence among many viruses, like the ones Benzer studied...
The genetic code is the set of rules by which information encoded within genetic material (DNA or mRNA sequences) is translated into proteins by living cells. Biological decoding is accomplished by the ribosome, which links amino acids in an order specified by mRNA, using transfer RNA (tRNA) ...
What is a genetic mutation? Genes: Genes are DNA sequences which have biological function. Most genes are for polypeptide molecules however some genes encode RNA species such as ribosomal RNA. Answer and Explanation:1 Genetic mutations are alterations in the sequence of bases in a gene. Genetic...
What is a geneGene is a short section or segment of DNA. DNA is a double-stranded molecule that contains a sequence of bases; Adenine (A), Cytosine (C), Thymine (T), and Guanine (G). So, we can say that a gene is a specific sequence of bases and a unit of genetic material (...
This section provides a quick introduction of gene, which is a section of a double helix DNA structure that contains a specific sequence of base pairs representing a specific coded instruction to construct building blocks for living organisms.©...
The idea of genes as beads on a DNA string is fast fading. Protein-coding sequences have no clear beginning or end and RNA is a key part of the information package, reports Helen Pearson. The genetic code ‘cracked’,protein synthesis ‘solved’ and comp
Next-generation sequencing (NGS) is a technology for determining the sequence of DNA or RNA to study genetic variation associated with diseases or other biological phenomena. Introduced for commercial use in 2005, this method was initially ...
Since the sequence of bases carries the instructions for making proteins and also regulates gene functions, the ability to read genetic sequences is enormously valuable to biological research. Because differences in DNA and RNA sequences can distinguish organisms down to species ...
Central to hereditarian science is a tall claim: that identifiable variations in genetic sequences can predict an individual’s ability to learn, reason and solve problems. This is problematic on many levels. A teacher could not seriously tell a parent their child has a low genetic tendency to...