During DNA replication, special enzymes move up along the DNA ladder, unzipping the molecule as it moves along. New nucleotides move in to each side of the unzipped ladder. The bases on these ...

are called haploid because they contain half the chromosomes of diploid cells. Chromosomes are often observed and depicted as X-shaped structures. DNA takes this form following DNA replication ...

During sexual reproduction, haploid gametes (i.e. eggs and sperm) are generated from diploid precursors through the specialized cell division of meiosis. Meiosis reduces ploidy by following one round ...

MSK researchers shed new light on G-quadruplexes, a type of secondary DNA structure that has attracted attention as a ...

DNA achieves this feat of storing, coding and transferring biological information though its unique structure. Replication of DNA DNA replication is the process by which a cell makes an identical ...

During meiosis, a diploid parent cell, which has two copies of each chromosome, undergoes one round of DNA replication followed by two separate cycles of nuclear division to produce four haploid ...

Mitochondrial deoxyribonucleic acid (mtDNA) is essential for cellular energy production and overall cell function.

Structure and replication of DNA DNA is the molecule that holds the ... of a sperm fuses with the nucleus of an ovum. These two haploid cells produce a diploid zygote. Hormonal control of ...