I assume that each new diploid individual results from the random fusion of a male and a female gamete and that its gender is independent of its autosomal genes.
This virus does not integrate into the fly chromosomes and is only vertically transmitted through male and female gametes .
Several gametic and zygotic reproductive barriers were found in a cross between Japonica and Indica rice varieties.
These observations demonstrate that a mechanism contributed by the cytoplasm of the wild-type gametic cell recognizes abnormal-length flagella and restores length control.
Indeed, usually the marker phenotypes do not provide the gametic phase of the chromosomes (which allele originates from which parent), for example, in the case of a double or multiple heterozygote.
Simultaneous analysis of the haploid megagametophyte and diploid embryo in a seed allows the female and male gametic contributions to the zygote to be separated.
Meiosis is the process by which diploid organisms produce haploid gametes capable of sexual reproduction.
If gametic and/or zygotic selection occurs whereby certain gametes or zygotic combinations have a reduced chance of survival, progeny distributions are skewed and are said to exhibit segregation distortion.
Zygotic embryogenesis in animals and plants starts with the fusion of the haploid female and male gametes , giving rise to a diploid zygote.
Once within the gonads, the germ cells differentiate as either male or female gametes .