Search Results for: chromosome
Y chromosome
Y chromosome Definition The Y chromosome constitutes one member of the pair of sex chromosomes within an organism, a common... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Men could go extinct? Y chromosome disappearing slowly
Hold on to your seats, gentlemen -- the male chromosome (Y chromosome) disappearing at a certain rate could absolutely be... Read More
Homologous chromosome
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More
Chromosomes X and Y and Sex Determination
Reviewed by: Mary Anne Clark, Ph.D.In humans, the normal chromosome complement is 46, consisting of 22 pairs of... Read More
Chromosome Mutations
Reviewed by: Mary Anne Clark, Ph.D.By nature, the genetic information from both parents is expected to be seen... Read More
Submetacentric chromosome
Definition noun, plural: submetacentric chromosomes A chromosome with a centromere located sub-median resulting in slightly... Read More
X chromosome
Definition noun, plural: X chromosomes A mammalian sex chromosome which typically occurs in two in females and one in... Read More
Metacentric chromosome
Definition noun, plural: metacentric chromosomes A chromosome in which the centromere is located in the middle resulting in... Read More
Acrocentric chromosome
Definition noun, plural: acrocentric chromosomes A chromosome whose centromere is subterminal resulting in its q arms being... Read More
Subtelocentric chromosome
Definition noun, plural: subtelocentric chromosomes A chromosome whose centromere is placed near the end rather than the... Read More
Chromosome 2
Definition noun In humans, the autosome that is considered as the second-largest, spanning more than 242 million base pairs,... Read More
Sex chromosome
Definition noun, plural: sex chromosomes A type of chromosome in the genome that is involved in the determination of the sex... Read More
Holocentric chromosome
Definition noun, plural: holocentric chromosomes A chromosome in which the entire length of the chromosome seems to act as a... Read More
Sex-linked trait
Definition of Sex-Linked Traits A sex-linked trait is an observable characteristic of an organism that is influenced by the... Read More
Chromosomal mutation
Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... Read More
Telocentric chromosome
Definition noun, plural: telocentric chromosomes A chromosome whose centromere is placed very close to the end of the... Read More
Chromatids
Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... Read More
Centromere
Centromere Definition Centromere is defined as the point of attachment for the sister chromatids generated after DNA... Read More
Polytene chromosome
polytene chromosome (Science: cell biology) giant chromosomes produced by the successive replication of homologous pairs of... Read More
Sister chromatids
Sister Chromatids Definition Sister chromatids are defined as the two identical copies of a single replicated chromosome... Read More
Derivative chromosome
Derivative chromosome An anomalous chromosome generated by translocation. Synonym: translocation... Read More
Univalent Chromosome
A chromosome that fails to pair with another during the prophase stage of meiosis, and therefore does not exchange genetic... Read More
Triple-X syndrome
Definition noun A genetic condition in which a female has an extra X chromosome Supplement In humans, the sex chromosomes... Read More
Meiosis and Alternation of Generations
Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More
Quinacrine banding
Definition noun (cytogenetics) A chromosome banding method that treats chromosomes with quinacrine dihydrochloride to reveal... Read More
Patau syndrome
Definition noun A genetic disorder caused by genetic changes in chromosome 13, such as an extra copy of chromosome 13... Read More
Klinefelter syndrome
Definition noun A genetic condition in a male characterized by the presence of at least one extra X chromosome Supplement In... Read More
Sex-determining Region Y gene
Definition noun The gene that codes for the SRY protein, which is associated with the testicular development in many male... Read More
Lampbrush chromosome
Lampbrush chromosome (Science: cell biology) large chromosomes (as long as 1mm), actually meiotic bivalents, seen during... Read More
Chromosome rosette
Chromosome rosette right before metaphase, human chromosomes briefly form this single ring... Read More