Sperm News and Research

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The term sperm refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell.
Mother's stress levels during conception could be a determinant of fetal sex

Mother's stress levels during conception could be a determinant of fetal sex

New genetic link to male infertility found

New genetic link to male infertility found

Living environment may affect male reproductive health, research suggests

Living environment may affect male reproductive health, research suggests

First model of early human embryo generated from skin cells

First model of early human embryo generated from skin cells

Exposure to endocrine disruptors in utero associated with poorer sperm quality in adulthood

Exposure to endocrine disruptors in utero associated with poorer sperm quality in adulthood

Study identifies how environmental information is transmitted by non-DNA molecules in the sperm

Study identifies how environmental information is transmitted by non-DNA molecules in the sperm

SARS-CoV-2 in wastewater may pose risks to marine mammals

SARS-CoV-2 in wastewater may pose risks to marine mammals

Somatic gene mutations in brain cells could contribute to schizophrenia pathology

Somatic gene mutations in brain cells could contribute to schizophrenia pathology

Moral outrage is an attractive behavior to people seeking long-term relationships

Moral outrage is an attractive behavior to people seeking long-term relationships

Study reveals physical phenomena relied by oocytes to grow big

Study reveals physical phenomena relied by oocytes to grow big

Researchers discover a safe, effective, reversible male contraceptive agent

Researchers discover a safe, effective, reversible male contraceptive agent

Study reveals the effect of pollution on male fertility levels of all species

Study reveals the effect of pollution on male fertility levels of all species

Researchers make gametes from xenogenic mouse stem cells

Researchers make gametes from xenogenic mouse stem cells

Newly discovered protein regulates molecular motors in response to light

Newly discovered protein regulates molecular motors in response to light

Retroviruses invading the koala germline contribute to high cancer rates

Retroviruses invading the koala germline contribute to high cancer rates

Uninherited genetic mutations can cause spina bifida

Uninherited genetic mutations can cause spina bifida

Male fruit flies win genetic race with rivals in post-mating fertilization game

Male fruit flies win genetic race with rivals in post-mating fertilization game

At-home, mail-in testing kit can accurately test sperm up to 52 hours after sample collection

At-home, mail-in testing kit can accurately test sperm up to 52 hours after sample collection

Zinc supplements can improve infertility issues during COVID-19 pandemic

Zinc supplements can improve infertility issues during COVID-19 pandemic

Paternal early life stress linked to child's brain development

Paternal early life stress linked to child's brain development