Respuesta :
Ans. (B). XX, XY ,XX, XY ,XY, XX .
In pigs, the XY-sex determination system is found. According to this system, sex of the organisms can be determined by the presence of a pair of sex chromosomes.
Females have two X chromosomes (represented by XX), and known as homogametic sex, while males have one X and one Y chromosomes (represented by XY), and known as heterogametic sex.
Thus, the correct answer is option (B).
The correct combination of the symbol is XX, XY, XX, XY, XY, XX. Option B is correct.
What is Genotype?
- It is the combination of alleles that are found in the zygote is called genotype.
- In mammals, Y - chromosome determines the gender of the zygote. In males one X and one Y- chromosome is found.
- In females, two X-chromosomes are found. A zygote is the first diploid cell formed after fertilization.
Therefore, the correct combination of the symbol is XX, XY, XX, XY, XY, XX. Option B is correct.
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