Examples of tetraploid

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The sequence from a tetraploid was identical to that from all triploids.
There are two cytotypes, a diploid and a tetraploid.
A diploid has 14, a tetraploid has 28, and a hexaploid has 42 chromosomes.
Similarly, hexaploid species result from hybridization between a tetraploid and a diploid.
This is particularly true in tetraploid mapping presented here.
Big and/or tetraploid cells could be preferentially allocated to the mural trophectoderm in several ways.
Collectively, these embryos shed light on possible mechanisms that occur in human preimplantation development, particularly of tetraploid embryos.
In contrast, rat tetraploid embryos implant normally and survive until day 8 of pregnancy.
We only examined embryos showing more than five metaphase spread cells to define as either diploid or tetraploid embryo.
Moreover, it has not been assessed whether rat tetraploid embryos have the ability to support the development of diploid cells that cannot develop independently.
Furthermore, our results showed rat tetraploid embryos are less able to undergo postimplantation development compared with mouse.
We also examined whether rat tetraploid embryos have the ability to support the development of blastomeres that cannot develop independently.
In tetraploid mapping, this drift error can be substantially reduced compared with diploid mapping.
Inbreeding depression in diploid, tetraploid, and hexaploid crested wheatgrass.
Therefore, co-dominant markers are necessary for tetraploid mapping.
This reasoning applies only to tetraploid populations under the ' duplex-mutation ' model of dominance or for completely recessive mutations.
Since the meiotic chromosomes in the female perform no crossing-over, tetraploid females are as fertile as diploids.
Therefore, reduced cell number in the tetraploid rat embryos may the cause of aberrant fetal development, although these embryos have the ability to implant.
Sorting out might also occur in big tetraploidbig diploid chimaeras if tetraploid and diploid cells had different cell surface properties.

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