Weakened chromosome anchors may help explain age-related declines in egg quality

As many as one in six adults face fertility difficulties worldwide, research has shown, and the challenge becomes harder as ...
Phys.org

Genetic engineering reduces plant's chromosome number without affecting its growth

Every living being possesses a particular number of chromosome pairs that it inherited from both parents. In human beings, for example, there are 23 pairs, i.e., 46 chromosomes altogether, tomatoes ...
BIOENGINEER

Gourami clade shows high chromosome-number variability

A cytogenetic study of seven species in the gourami family’s spiral egg clade found unusually low and variable chromosome ...
BIOENGINEER

Dragonfly chromosomes reveal dramatic fusion-driven karyotype evolution and a hidden neo-XY system

A cytogenetic study of three Argentine Orthemis dragonfly species documents chromosome numbers ranging from 2n=12 to 2n=41 ...
Nature

Chromosome Number Evolution in Vascular Plants

Chromosome number variation underpins much of the genomic diversity observed in vascular plants, arising principally through two processes: polyploidy, the duplication of entire chromosome sets, and ...

[3rd Year Junior High Science] Are you making the mistake of thinking "it's division, so it's half"? | Understanding chromosome counts through the "copy then divide" concept

"I've memorized 'meiosis.' But when asked about the number of chromosomes, I get it wrong."Have you ever felt that way when looking at your child's test answers?They know it "becomes half." But they ...
PBS

Human Chromosome 2

This video segment from NOVA: "Judgment Day: Intelligent Design on Trial" reveals how genetic evidence helped to confirm an important component of Darwin's theory of evolution by natural selection: ...