Meiosis News and Research

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Multicellular eukaryotes and single-celled sex cells reproduce by a process called meiosis. In this process, the number of chromosomes in a mother cell is halved to produce gametes, cells that fuse with other cells. This happens in plants, animals, and fungi. German biologist, Oscar Hertwig first discovered meiosis in sea urchin eggs in 1876.

Satellite DNA acts as a barcode for matching chromosome pairs

The body cells of humans and animals contain a double set of chromosomes. One half of the genetic material comes from the mother, the other stems from the father.

24 Aug 2026

Discovery provides key insights into cellular mechanisms underlying female fertility

Female fertility depends on the successful growth and maturation of eggs (oocytes) within ovarian follicles. Within these follicles, the oocyte is surrounded by granulosa cells that supply nutrients, signaling molecules, and structural support essential for egg development.

2 Jul 2026

Study advances safe, reversible male contraceptive without hormones

Cornell University scientists have taken a major step toward developing a safe, reversible, long-acting and 100% effective nonhormonal male contraceptive, considered the holy grail of male contraception.

7 Apr 2026

Embryonic reproductive cells reveal striking genomic architecture before development

Researchers at the MRC Laboratory of Medical Sciences (LMS) and Imperial College London have shown for the first time that, before they can start developing into egg and sperm cells, the embryonic precursors of these cells uniquely reshape the 3D organization of their genetic material.

20 Feb 2026

AI automates sister chromatid exchange counting, improving diagnosis of Bloom syndrome

Researchers from Tokyo Metropolitan University have developed a suite of algorithms to automate the counting of sister chromatid exchanges (SCE) in chromosomes under the microscope.

10 Jan 2026

Dual pathways found for centromere specification, ensuring accurate chromosome segregation

Despite the immense amount of genetic material present in each cell, around three billion base pairs in humans, this material needs to be accurately divided in two and allocated in equal quantities.

8 Jan 2026

Study finds increased rates of DNA mutations in mice pups conceived with IVF

Mice pups conceived with in vitro fertilization (IVF) in the lab have slightly increased rates of DNA errors, or mutations, compared to pups conceived naturally, a new study on artificial reproductive technologies suggests.

17 Nov 2025

Scientists identify essential process that protects DNA integrity in reproductive cells

A team of scientists at the University of Seville has identified an essential process that protects DNA integrity in reproductive cells, providing new clues about how organisms avoid genetic defects during egg formation.

6 Nov 2025

Researchers achieve proof of concept for generating eggs from somatic cells

Researchers at Oregon Health & Science University have accomplished a unique proof of concept to treat infertility by turning skin cells into eggs capable of producing early human embryos.

17 Oct 2025

Tiny DNA junctions provide feedback to control genetic crossovers

Every new life begins after a genetic shuffle. When organisms make eggs or sperm, maternal and paternal chromosomes pair up and swap pieces of DNA in a process called crossing over.

25 Sep 2025

Researchers uncover how chromosome crossovers protect fertility

When a woman becomes pregnant, the outcome of that pregnancy depends on many things - including a crucial event that happened while she was still growing inside her own mother's womb.

24 Sep 2025

Groundbreaking studies reveal how DNA folding guides sperm cell development

Two new landmark studies show how a seeming tangle of DNA is actually organized into a structure that coordinates thousands of genes to form a sperm cell.

3 Mar 2025

Pocket on cyclin B ensures correct sequence of cell division

A "pocket" on the protein cyclin B is responsible for ensuring that the steps of cell division take place in the correct order. Two studies by researchers at the University of Konstanz investigated why this is the case.

28 Jan 2025

New therapies and technologies provide hope for age-related fertility challenges

Scientists explore emerging strategies to combat reproductive aging, highlighting promising therapies and technologies to improve fertility in later life.

17 Dec 2024

Study links cannabis use to genotoxicity and transgenerational health impacts

Cannabis exposure leads to genetic damage and accelerated aging, raising concerns about its transgenerational health effects and public health implications.

18 Nov 2024

Understanding gametogenesis mechanisms in budding yeast

Sexual reproduction, a common mode of reproduction among numerous species, involves gametogenesis in which offspring are produced through fertilization, conjugation, or mating.

27 Sep 2024

Temperature changes influence meiotic crossovers and chromosome organization in yeast

This study is led by Prof. Shunxin Wang (State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University) and Prof. Liangran Zhang (Advanced Medical Research Institute, Shandong University).

23 Aug 2024

Meiosis News and Research

Further Reading

Satellite DNA acts as a barcode for matching chromosome pairs

Discovery provides key insights into cellular mechanisms underlying female fertility

Study advances safe, reversible male contraceptive without hormones

Embryonic reproductive cells reveal striking genomic architecture before development

AI automates sister chromatid exchange counting, improving diagnosis of Bloom syndrome

Dual pathways found for centromere specification, ensuring accurate chromosome segregation

Study finds increased rates of DNA mutations in mice pups conceived with IVF

Scientists identify essential process that protects DNA integrity in reproductive cells

Researchers achieve proof of concept for generating eggs from somatic cells

Tiny DNA junctions provide feedback to control genetic crossovers

Researchers uncover how chromosome crossovers protect fertility

Groundbreaking studies reveal how DNA folding guides sperm cell development

Pocket on cyclin B ensures correct sequence of cell division

New therapies and technologies provide hope for age-related fertility challenges

Study links cannabis use to genotoxicity and transgenerational health impacts

Understanding gametogenesis mechanisms in budding yeast

Temperature changes influence meiotic crossovers and chromosome organization in yeast

Scientists transform skin cells into functional eggs in mice

Unveiling the molecular mechanism responsible for crossover interference during meiosis

“Laboratory testicles” could solve male infertility mysteries

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