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 best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
Answer:
Transport vesicles, containing partially processed proteins, fuse with the folds of the <u>Golgi apparatus (cisternae)</u> on the cis face and bud from the cisternae on the more distal side (trans face).
Explanation:
Some of the matrix proteins form long, filamentous tethers that are thought to help retain Golgi transport vesicles close to the organelle. When the cell prepares to divide, mitotic protein kinases phosphorylate the Golgi matrix proteins, causing the Golgi apparatus to fragment and disperse throughout the cytosol.
Thermal energy/ heat energy
