en.wikipedia.org/wiki/Chimera_(genetics)

This sentence incorrectly classifies "Family" trees as graft chimeras.

A graft chimera is not just any tree with several grafted varieties. It is a single shoot or plant structure formed from mixed tissues at the graft union, such as +Laburnocytisus 'Adamii'. By contrast, a “family tree” is usually just a tree with multiple separate scions grafted onto the same stock or onto different branches.

The University of Missouri Extension explains that multiple grafts may produce an apple tree with several varieties, and separately notes that when a different shoot develops from the graft union, that is a chimera. In other words, multi-variety trees and graft chimeras are different things.

So the sentence is wrong in presenting ordinary multi-variety apple/pear “family trees” as examples of graft-chimeras.

This sentence is historically inaccurate because it assigns the first chimeric mouse solely to Beatrice Mintz.

Modern historical reviews of chimera research credit Andrzej Tarkowski's 1961 study as the pioneering first demonstration that aggregated early mouse embryos could develop into chimeric mice. Mintz's work followed soon after and was also foundational, but she was not the sole first creator of mouse chimeras.

A Cell Stem Cell review states that Tarkowski's pioneering study first showed that cleavage-stage embryos could aggregate and develop, and the primary Cell paper on rhesus monkey chimeras likewise says that the first chimera studies of Tarkowski (1961) and Mintz (1962) independently demonstrated mouse embryo aggregation chimeras.

So the accurate version is that early mouse chimeras were first demonstrated by Tarkowski in 1961, with Mintz independently producing them soon after—not that the first chimeric mouse was made by Mintz alone.

This sentence contains a clear category error: nucleic acid thermodynamics is not a mechanism by which plant plastids “sort out” to form chimeras.

In the scientific literature, nucleic acid thermodynamics refers to the physical chemistry of DNA/RNA stability and folding. A standard methods review defines it as measuring thermodynamic parameters for nucleic acids and explains its use in RNA structure prediction and DNA primer design.

By contrast, plant-chimera reviews describe plastid-differential chimeras as arising from spontaneous or induced plastid mutation or from sorting-out of plastids from a mixed egg or mixed zygote. They do not describe “nucleic acid thermodynamics” as a causal pathway in plant chimerism.

This appears to be an erroneous inserted term, not a valid biological process in this context.

This sentence is inaccurate in two ways.

First, the landmark 2012 report did not identify only the twins Roku and Hex as the first primate chimeras. The study reported three first chimeric rhesus monkeys: the twins Roku and Hex and a singleton named Chimero.

Second, the literature describes these animals as being created from aggregates of up to six embryos. That does not justify the stronger statement that Roku and Hex were each having six genomes. Popular and review summaries phrase this more carefully as cells from as many as six rhesus monkeys.

The primary Cell paper states that the remaining two recipients delivered healthy twin Roku and Hex and singleton Chimero infants, and identifies all three as live chimeric offspring. Secondary summaries likewise describe Hex, Roku and Chimero as the world's first chimeric monkeys, with cells from as many as six embryos.