Spermatogenesis isa process of developing male gametes, known as sperm within the male reproductive organs, the testes. In this process, each sperm (haploid, containing a single copy of each chromosome. ... This
What organ releases the female gamete under formation? How is this release triggered? What organ collects the released gametes? In which part of the female reproductive system does ovulation take place? What is the follicle stimulating hormone and how is it different in males from females?
All somatic cells undergo mitosis, whereas only germ cells undergo meiosis. Meiosis is very important because it produces gametes (sperm and eggs) that are required for sexual reproduction. Human germ cells have 46 chromosomes (2n = 46) and undergo meiosis to produce four haploid daughter cells ...
The reproductive system consists of the primary sex organs known as gonads, which produce gametes and hormones, secondary sex organs that participate in reproduction but do not produce gametes, and the accessory sex organs which cause differences in the appearance of the male and female organisms....
33 Males of the meloid beetle Lytta vesicatoria (Spanish fly) are able to produce it from mevalonate and from farnesol and transfer it to the females (who do not produce this defensive compound) during copulation.548 Cantharidin acts as an intraspecific attractant and appears to play an ...
Furthermore, whereas giving an egg or sperm gamete is an unequivocal and exclusive sexually reproducing domain of females or males, respectively, some individuals with DSD conditions can produce both. Should they be considered male, female, both, or an exception? What it is true is that they ...
Females were significantly more likely than males to state some form of conditional willingness (8.2% difference; p = 0.008), and males were more likely than females to state some form of barrier (6.4%; p = 0.015) or conscientious objection (3.9% difference; p = 0.076) in ...
Allotetraploid individuals may then be produced by fusion of two such gametes. When pairing, allotetraploids of both sexes may then give birth, in a single generation, to a new mayron the members of which will not produce a viable and fertile descent with any individual of their parental ...
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phenotypes—males and females. Males produce small gametes; females produce large gametes. The sex of an individual normally refers to the individual’s sexual phenotype, not its genetic makeup. The mechanism by which sex is specified is termed sex determination. Sex may be ...