Scientists have established a system to generate clonal sex cells in tomato plants and used them to design the genomes of offspring. The fertilization of a clonal egg from one parent by a clonal sperm ...

The Y chromosome is also the smaller of the pair. The sex chromosomes are thought to have first evolved in mammals around 180 ...

How does DNA recombination work? It occurs frequently in many different cell types, and it has important implications for genomic integrity, evolution, and human disease. In the alternate pathway ...

May/1652024/pseb-class-11-biology-syllabus-2024-2025.jpg" width="1200" height="675" /> PSEB Class 11 Biology Syllabus: The ...

During mammalian oocyte meiosis, spindle migration and asymmetric cytokinesis are unique steps for the successful polar body extrusion. The asymmetry defects of oocytes will lead to the failure of ...