ballock,testicle,testis,orchis,egg,ball,nut- one of the two male reproductive glands that produce spermatozoa and secrete androgens; "she kicked him in the balls and got away" Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. ...
A haploid sex cell, formed during meiosis, that can combine with another haploid sex cell and produce a diploid fertilized egg: ___ Fill in the blank. A cell that has two copies of each chromosome, one from an egg and one from sperm is known as ___. In...
. As the effect of these chromosomes on sex-specific traits such as sperm production is well established, it would now be valuable to switch focus to explore how these chromosomes may influence sexual dimorphism in shared traits, or even play a role in traits where sex differences are not obs...
germ cell sexgoniameiosistroutGerm cells make two major decisions when they move from an indeterminate state to their final stage of gamete production.One decision is sexual commitment for sperm or egg production,and the other is to maintain mitotic division or entry into meiosis.It is unclear ...
in females—Improbizer_TTCTAACCTAATTAATT, Homer_10_1, and DME_GACCYADW—have homology to the known motif M4937_1.02 which is the predicted binding site of nhr-85, a nuclear hormone receptor involved in the development of the egg-laying system and formation of SDS-resistant dauer larvae47...
In mammals, the decision to become male or female is initiated in the gonad by the sex determination pathway, which drives and instructs the differentiation of the gonad into a testis or ovary. The gonad develops as an undifferentiated primordium that is
allSchistosomaspecies, since the translocation boundary overlaps theS. mansoniS0/PAR boundary. Within the Z-linked S0 region ofS. mansoni, we found the ortholog of theC. elegansgenemag-1, whose knockdown inC. eleganscauses the hermaphrodites to produce sperm instead of oocytes82; inS. japonicum...
Sex determination is an essential step in the commitment of a germ cell to a sperm or egg. However, the intrinsic factors that determine the sexual fate of vertebrate germ cells are unknown. Here, we show that foxl3, which is expressed in germ cells but not somatic cells in the gonad, ...
Sex determination is an essential step in the commitment of a germ cell to a sperm or egg. However, the intrinsic factors that determine the sexual fate of vertebrate germ cells are unknown. Here, we show that foxl3, which is expressed in germ cells but not somatic cells in the gonad, ...
sperm at mating, and in part by an associated seminal fluid protein, the sex peptide. We further show that the post-mating increase in female aggression is decoupled from the costs of egg production and from post-mating decreases in sexual receptivity. Our results indicate that male ejaculates...