【TED】科普动画集锦 546 The secret language of trees 04:35 【TED】科普动画集锦 547 The secret lives of baby fish 04:00 【TED】科普动画集锦 548 The secret messages of Viking runestones 04:35 【TED】科普动画集锦 549 The secret student resistance to Hitler 05:33 【TED】科普动画集锦 ...
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In both mammals and birds, sex is determined by specific, visibly distinguishable chromosomes. In mammals, males (the heterogametic sex) have an X and a Y chromosome, while females (homogametic) have two 展开 DOI: 10.1677/joe.0.1280329 被引量: 2 ...
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We used a nucleotide substitution model with 1000 bootstraps [28]. Trees were visualized and edited with iTOL v5 [29]. Results In total, 155 spleen samples from eight genera of rodents were analyzed; 42.6% (66/155) were of genus Rattus, 31.6% (49/155) Zygodontomys, 10.9% (17/155)...
() function with parameter “deepSplit = 2” from R package dynamicTreeCut [51]; (2) manually set by users based on their prior knowledge or specific requirements; and (3) visualization of the hierarchical trees and UMAP clustering results can assist in determining the optimal spatial ...
Trees are not a species, or even a family or an order. So do trees even exist, scientifically? Tom Kimmerer, a consulting forest scientist based in Kentucky, said yes — just not in the way you might think. "Many years ago I asked my daughter Larkin, 'What's a tree?'" Kimmerer to...
in voluntary DNA testing, new links in family trees are discovered. Services such as23andMe,AncestryDNA, and others offer DNA testing for a fee. But there are questions about the reliability of the results, and privacy concerns too. See my articleIs Someone Searching for Your DNA Online?
as it can introduce pre-designed large DNA fragments with precision. Based on successful applications of these new editing systems in various crops, single-base editing, guided editing, and CRISPR/Cas12a systems could be effectively applied to fruit trees. However, the choice of editing system sho...
11.DNA is the whole map of the human body.It is something that all humans have.and it tells the bodywhat to do.DNA is the reason that we look like our parents.because we get some of their DNA to make our own.People have been trying to understand the