Eggs;Gamete dimorphism;Gametes;Intersexual selection;Intrasexual competition;Sexual reproduction;Sperm Definition Males and females produce gametes that are differentially specialized to facilitate the sexes in reproduction. Introduction The production of gametes is a biological process occurring in organisms that...
Broody behavior consists of termination of egg production, the incubation of eggs, and care of the young. From: Sturkie's Avian Physiology (Fifth Edition), 2000 About this pageSet alert Also in subject areas: Biochemistry, Genetics and Molecular Biology Earth and Planetary Sciences Immunology and...
We show that the number of eggs laid by a female depends upon the number of genes encoding yolk polypeptides present in the genome and furthermore that the probability of an egg hatching into an adult also critically depends upon the number of yolk protein genes present in the mother. This ...
The TALEN-induced XYDMY− medaka developed into females and laid eggs. Although the sex-determining function of the DMY protein is already recognized; however, as a transcription factor, how does it regu- late the downstream factor(s) to control testis differentiation, development and germ cell...
Parental investment in eggs and, consequently, in offspring can profoundly influence the phenotype, survival and ultimately evolutionary fitness of an orga... EM Dzialowski,PR Sotherland - 《Journal of Experimental Biology》 被引量: 123发表: 2004年 Semen production by the emu (Dromaius novaehollan...
antipodarum could generate XO eggs that develop into male individuals. Cytological studies directly aimed at characterizing sex determination in P. antipodarum and the karyotypes of male and female diploid and polyploid P. antipodarum will be required to discriminate between these and other possible ...
The mating patterns of four species of hermaphroditic scleractinian coral were investigated in November 1984 at Orpheus Island on the Great Barrier Reef, Australia. Each of the species shed eggs and sperm into the water, with subsequent ... AJ Heyward,RC Babcock - 《Marine Biology》 被引量: ...
reedi females obtained from commercial catches carried out between March and July 1995 in the area of Coquimbo, northern Chile. We compared data from iced specimens with those from living females. H. reedi produced up to 27237 eggs, the greatest number so far reported for a pandalid species...
TIME-EA4 is an ATPase that measures time intervals, functioning as a diapause duration clock in diapause eggs of the silkworm, Bombyx mori. Characterizatio... I Minoru,K Hidenori,K Takuya,... - 《Chembiochem A European Journal of Chemical Biology》 被引量: 0发表: 2013年 加载更多来源...
Eggs were hatched in the laboratory at temperatures comparable with those in the field. Hatching was highly synchronised and the overall hatching success was 75.1%. Causes of egg mortality in the laboratory were limited to infertility and unhatchability. Since no other sources of egg mortality ...