Most cells in the tissues of most organisms proliferate through somatic cell division (mitosis). This is a continuous cycle where a single cell doubles its genetic information (chromosomes) and ...

How the chromosomes in germ cells pair off, trade a few genes and split to give each gamete half a normal complement of genes is so complicated that researchers have had a hard time making sense of ...

Researchers have identified a novel Heat Shock Factor (HSF), designated as HSF5, which plays a crucial role in the completion of meiosis and the activation of genes essential for sperm formation. This ...

Describe the basic principle of mitosis (why do cells undergo mitosis?). Diagram how an exact replica of the genetic material is made, including the numbers of chromosomes present at each phase of ...

As in prophase I, the chromosomes condense, spindles form, the centrioles begin to separate, and the nuclear membrane fragments and disperses. Unlike prophase I, the chromosomes do not attach to the ...

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from ...

More than one-sixth of adults around the world experience infertility in their lifetime. There is a high unmet need not only for increased access to affordable, high-quality fertility care for those ...

The X and Y chromosomes make an unlikely pair. The X is large and contains thousands of genes critical for life. The Y, by contrast, is small, with only a handful of genes. Its main purpose is to ...

The Genomics Primer serves as a foundation for practitioners to reference for basic definitions and concepts in the field of genomic medicine. Upon successful completion of this module, participants ...

Deletion of hsf5 in mice results in the impaired development of testis (left), and the absence of spermatids and spermatozoa (right), which leads to the failure of sperm formation. Kumamoto University ...