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Androgenesis is a system of asexual reproduction that requires the presence of eggs and occurs when a zygote is produced with only paternal nuclear genes.During standard sexual reproduction, one female parent and one male parent each produce haploid gametes (such as a sperm or egg cell, each containing only a single set of chromosomes), which recombine to create offspring with genetic material ...
Androgenesis occurs when a zygote is produced with only paternal nuclear genes. During standard sexual reproduction , one female and one male parent each produce haploid gametes (such as a sperm or egg cell, each containing only a single set of chromosomes ), which recombine to create offspring with genetic material from both parents.
Androgyny is the possession of both masculine and feminine characteristics. [1] Androgyny may be expressed with regard to biological sex or gender expression.. When androgyny refers to mixed biological sex characteristics in humans, it often refers to conditions in which characteristics of both sexes are expressed in a single individual.
The following is a list of people who are considered a "father" or "mother" (or "founding father" or "founding mother") of a scientific field.Such people are generally regarded to have made the first significant contributions to and/or delineation of that field; they may also be seen as "a" rather than "the" father or mother of the field.
An androgen (from Greek andr-, the stem of the word meaning ' man ') is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors.
This is a list of notable people who have been described at any time as androgynous in their persona or presentation, either by self-identification or in reliable sources. List [ edit ]
Gynogenesis with haplodiploidy in the ant Myrmecia impaternata. The ant Myrmecia impaternata is a hybrid of M. banksi and M. pilosula. [7] In ants, sex is determined by the haplodiploidy system: unfertilized eggs result in haploid males, while fertilized eggs result in diploid females.
A directorial republic is a government system with power divided among a college of several people who jointly exercise the powers of a head of state and/or a head of government. Merchant republic In the early Renaissance, a number of small, wealthy, trade-based city-states embraced republican ideals, notably across Italy and the Baltic.