Question

give an example of an organism that exhibit XO-type of sex determination ? what is the sex determination designed as?

Answer 1

Grasshopper shows this type of sex determination.
In this Males produce only one type gamete(X) while the female produces two (X X).
Its sperm normally contain either one X chromosome or no sex chromosomes at all.

Answer 2

$\bold{\huge{\red{Sex \: determination \: system}}}$
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A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. Most organisms that create their offspring using sexual reproduction have two sexes. Occasionally, there are hermaphrodites in place of one or both sexes. There are also some species that are only one sex due to parthenogenesis, the act of a female reproducing without fertilization.

In many species, sex determination is genetic: males and females have different alleles or even different genes that specify their sexual morphology. In animals this is often accompanied by chromosomaldifferences, generally through combinations of XY, ZW, XO, ZOchromosomes, or haplodiploidy. The sexual differentiation is generally triggered by a main gene (a "sex locus"), with a multitude of other genes following in a domino effect.

In other cases, sex of a fetus is determined by environmental variables (such as temperature). The details of some sex-determination systems are not yet fully understood. Hopes for future fetal biological system analysis include complete-reproduction-system initialized signals that can be measured during pregnancies to more accurately determine whether a determined sex of a fetus is male, or female. Such analysis of biological systems could also signal whether the fetus is a hermaphrodite, which includes total or partial of both male and female reproduction organs.

Some species such as various plants and fish do not have a fixed sex, and instead go through life cycles and change sex based on genetic cues during corresponding life stages of their type. This could be due to environmental factors such as seasons and temperature. Human fetus genitals can sometimes develop abnormalities during maternal pregnancies due to mutations in the fetuses sex-determinism system, resulting in the fetus becoming intersex.

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$\bold{Example :}$The X0 sex-determination system is a system that determines the sex of offspring among: most arachnids with the exception of mites where a small majority are haplodiploid, almost all apterygote and Paleopteran insects (e.g. dragonflies and silverfish)★★★..........

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