Vertebrates are the result of an ancient double duplication of the genome. A new study published in BMC Biology explores the selective retention of genes after this event, finding an extensive enrichment of signaling proteins and transcription factors. Analysis of their expression patterns, interactions...
Bird Flu a “Single Mutation” Away from Humans Stuck Stem Cells Culprit for Gray Hair This Mouse Has Genes Older Than All Animal Life Memory Isn’t Exclusive To the Brain Scientists May Have Found Why Some 'Hear Voices' Scientists Hit the “Pause Button” on Human Life...
We now know that, depending on the organism, the proportion of TEs in the genome can differ widely, ranging from a few percent (3% in the yeast Sacchar- omyces cerevisiae; Kim et al., 1998) to a huge proportion encompassing almost the entire genome (480% in the maize; SanMiguel et ...
including the discovery in the 1960s of far more genetic variance than could be subject to selection according to traditional theory [1, 2], and ENCODE’s very recent finding that the majority of the human genome is biochemically active [3]. From...
“Would a computer running the duplicated information processing in the human mind be conscious? … Is there a mute but fully aware visual consciousness sealed off in the back of your head if the visual receiving area of your brain was surgically severed from the rest? … Might your experience...
Expansion of these specified progenitor ‘zones’ requires sustained Shh exposure over the entire duration of its expression to produce all digits (late phase). B4. Relay model: The relay graph shows one hypothetical example of a possible relay mechanism, in which high (P) or low (A) Shh ...