Search Results for: sex 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
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
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
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... 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
Sex Reversal – When Males Grew Ovaries Instead of Testes
Summary: Sex reversal is not unusual in some animals, especially in invertebrates. As for the vertebrates, there are... Read More
Chromatids
Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... 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
Hermaphrodite
We all know that typically living organisms are divided into two main categories of sex-based on their biological structure.... 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
Sex linkage
Definition noun, plural: sex linkages A condition in which a trait or a phenotype manifesting apparently more frequently in... Read More
Sex-linked gene
Definition noun, plural: sex-linked genes A gene located in the sex chromosome. Supplement In humans, the sex... 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
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
Y-linked inheritance
Definition noun (genetics) Inheritance for genes on the Y chromosome Supplement Sex chromosomes are not only relevant... Read More
Sex-linked disorder
Definition noun, plural: sex-linked disorders A genetic disorder caused by or linked to gene(s) located in the sex... Read More
Haplodiploidy
Definition noun A biological system of sex determination as observed in the Hymenopteran species (e.g. ants and bees) where... 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
Homogametic sex
Definition noun The sex of a species possessing similar sex chromosomes Supplement In humans, the homogametic sex is the... Read More
X-linked inheritance
Definition noun (genetics) Inheritance for genes on the X chromosome Supplement Sex chromosomes are not only relevant for... Read More
Sex determination
Definition noun (1) (embryology) The developmental process in which the sex of a bipotential embryo is fixed or determined... Read More
Inherited traits
What are Inherited Traits? The characteristics or traits that are passed from parents to offspring are known as inherited... Read More
Sex-linked
Definition adjective (1) Pertaining to a gene located in the sex chromosome (especially an X chromosome). (2) Pertaining to... Read More
Sexual reproduction
Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More
Genetic Information and Protein Synthesis
Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... 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
Law of Segregation
Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that initially were... Read More
Monogenic disease
Monogenic Disease Definition A monogenic disease is a diseased condition determined by the interaction of a single gene.... Read More