genetics - Do plants have distinctive DNA genomes from each …
2016年3月23日 · Because you can see lot of single nucleotide polymorphisms and maybe other changes in the DNA unique to the plant whose leaf you found. If your plant species reproduce by vegetative reproduction it could be more difficult because you can not find a lot of DNA changes making your plant unique.
What is the difference between a species tree, a gene tree and a ...
2016年11月5日 · These lineages might be computed for genome-wide DNA or from only a single gene. As such the term phylogenetic tree is general. gene tree vs species tree. If you compute a phylogenetic tree, from genome-wide DNA, then you are computing a species tree (although some sister lineages might not perfectly fit the definition of species).
Creating a Phylogenetic tree using DNA sequences
Coming to inferring phylogeny on DNA samples where you have real DNA samples. For short sequences (upto 10kb, after that it becomes very time intensive), what you want is a Multiple sequence alignment such as Clustal Omega. But the other procedure is to align entire genomes.
proteins - Pros and cons of amino acid structure vs DNA …
2017年8月9日 · Amino acid (protein) structure has its advantages over raw DNA. Protein structure already has introns (noncoding regions) trimmed out which aren't obvious from a plain DNA string. A protein can have different shapes (such as unbound/bound) or even folded/misfolded (as in the case of prions).
bioinformatics - Use of amino-acid sequences versus use of …
Reading a paper about gene evolution, I see that they do phylogenetic analysis for bacteria using protein sequences. They take the method from another paper. I can suspect that amino-acid sequenc...
How does plant grafting work? - Biology Stack Exchange
10. Plant grafting is a process whereby a piece of one plant is inserted into another and results in a change of the original plant. For example, grafting a piece of a lemon tree into a bitter orange tree will cause that tree to produce lemons instead of …
molecular biology - DNA content in plant seeds vs. fruit flesh ...
2015年1月7日 · 1. Cell walls are a major problem for (sequencing length) DNA extraction. You will normally have more usable yield from the fruit flesh than from hard seeds. Another problem might be essential oil in the fruit flesh, though. – skymningen. Jan 28, 2014 at 7:57. Add a comment.
Is it possible to genetically modify a plant at home?
2014年7月23日 · Yes it is. The easiest plant to transform would be Arabidopsis, which can be transformed by agrobacterium using the floral dip method. The process would be as follows: 1. Design a gene sequence you wish to insert into the plant …
How likely is a lack of DNA match with a distant relative?
2021年4月12日 · 5-7 generations is a long time. Mother and child or brother and sister each share 50% of their DNA. If you find a link between two people that is five generations back, that means you take 50% of 50% of 50% ... for five generations. For both you and the other. Then there is a brother-sister link.
How long does DNA last in wood? - Biology Stack Exchange
2022年8月10日 · 14. DNA can remain intact in wood, enough to perform useful identification, for centuries (this study had success with wood from ~1300 AD). However, successfully extracting DNA from the wood may be difficult, depending on the species, age, cut, and preservation. Share. Improve this answer.