Choose the set of sex determining chromosomes that indicates the correct sex of the respective organism.

The correct option is: "XO type of sex chromosomes determine male sex in grasshoppers".

Here is a detailed, step-by-step breakdown of why this option is correct, along with an explanation of why the other options are incorrect:

1. Understanding the XO Sex-Determination System:
In grasshoppers, sex determination follows the XO system (a variant of the XX/XO system).
Females are the homogametic sex, possessing two X chromosomes (represented as XX).
Males are the heterogametic sex, but they have only a single X chromosome and no corresponding sex chromosome (represented as XO, where 'O' denotes the absence of a second sex chromosome).
Therefore, the presence of a single X chromosome (XO) determines the male sex in grasshoppers, making this option completely correct.

2. Analyzing the incorrect options:

• "Homozygous sex chromosomes (ZZ) determine female sex in birds"
In birds, sex determination follows the ZW system. Females are heterogametic (ZW) and males are homogametic (ZZ). Thus, homozygous ZZ chromosomes determine the male sex, not female.

• "XXY condition in humans, as found in Turner Syndrome, determines male sex"
This statement contains a biological error. Turner syndrome is characterized by the presence of a single X chromosome ($XO$), resulting in a female phenotype. The XXY condition in humans actually describes Klinefelter syndrome, which results in a male phenotype due to the presence of the Y chromosome containing the SRY (sex-determining region Y) gene.

• "Homozygous sex chromosomes (XX) produce male sex in Drosophila"
In Drosophila (fruit flies), sex is determined by the ratio of X chromosomes to autosomes. Similar to humans, homozygous XX chromosomes produce female flies, while XY or XO flies are male.