Genetics – WHYS.video

How Common Is Male Sterility and What Causes It?

Sep 27, 2026Discover how common male sterility is, its causes, and lifestyle tips to improve fertility in men.

What Is the Typical IQ Range for Individuals with Klinefelter Syndrome?

Sep 9, 2026Discover the range of IQ scores in people with Klinefelter syndrome and understand how cognitive abilities can vary widely among individuals.

Can Eunuchs Still Achieve Erections? Understanding Erectile Function Post-Castration

Aug 24, 2026Explore how castration affects erectile function in eunuchs, factors influencing erections, and the complexity of sexual response.

What Happens If Chromosome 23 Has an Extra Copy? Understanding Klinefelter Syndrome

Aug 1, 2026Learn about the effects of an extra chromosome 23, commonly linked to Klinefelter syndrome in men, and its symptoms and diagnosis.

Does Mother's Age Affect Baby Gender? Scientific Explanation

Jul 25, 2026Explore whether a mother's age influences baby gender and learn what science says about gender determination.

What is 46,XY Karyotype Syndrome (Swyer Syndrome)?

Jul 22, 2026Learn about 46,XY Karyotype Syndrome, also called Swyer syndrome, its causes, symptoms, and treatment options like hormone replacement therapy.

Who Is at Higher Risk for Down Syndrome? Key Risk Factors Explained

Jul 20, 2026Discover the main risk factors for Down syndrome, including maternal age, genetic history, and more.

What Does It Mean to Be a Female with 46,XY Chromosomes? Understanding Androgen Insensitivity Syndrome

Jul 17, 2026Learn about females with 46,XY chromosomes and Androgen Insensitivity Syndrome, where XY individuals develop female traits due to hormone insensitivity.

Can a Female Have the XXY Chromosome Pattern?

Jul 12, 2026Learn why females typically cannot have the XXY chromosome pattern associated with Klinefelter syndrome, which affects males.

Is Having 23 Pairs of Chromosomes Normal for Humans?

May 20, 2026Learn why having 23 pairs of chromosomes is normal in humans and how deviations can affect genetic health.

What is the Gender Probability of Firstborn Children?

Jan 15, 2026Discover the gender probability of firstborn children and the factors influencing it in our informative video.

Understanding Jacob's Syndrome: Causes, Symptoms, and Management

Jan 15, 2026Explore Jacob's syndrome (XYY syndrome): causes, symptoms, and effective management strategies.

What Gender is 44 XY? Understanding Male Characteristics and Genetics

Jan 8, 2026Discover the biological implications of the 44 XY chromosomal pattern and its significance in determining male traits.

Do All Boys Start as Females? Understanding Sex Differentiation in Embryos

Jan 2, 2026Explore how male and female characteristics develop in human embryos.

Understanding the Global Gender Ratio: Are Males and Females Equal in Numbers?

Dec 31, 2025Explore the global gender ratio insights: Are males and females balanced worldwide? Learn about influencing factors.

Which Sperm Lives Longer: Girl (X) or Boy (Y)?

Dec 24, 2025Discover the lifespan differences between girl (X) and boy (Y) sperm in reproductive health.

Is Y Chromosome DNA Testing Accurate for Paternal Lineage?

Dec 12, 2025Discover the accuracy and limitations of Y chromosome DNA testing for tracing paternal ancestry in this informative video.

Discover the Origins: When Was Gender Dysphoria First Recognized?

Jul 19, 2025Explore the historical recognition of gender dysphoria and its implications through the years.