The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is 
.
Exercise is the primary advice the coaches give to the athletes if they get a cold or any other infection. The main reason behind this advice is the fact that exercising strengthens the immunity of a person. When a person has an infection, the strengthening of the immune system will help his body to efficiently fight against the infectious pathogens. The blood circulation is increased which is involved in the enhancement of the acute immunity of the person.
Eukaryotic cells are cells that have a nucleus, while prokaryotic cells do not.
Climate change cannot be
measured with a single instruments but require thousands of measuring devices
that spread across the globe, land and under the sea. Thus,parameters
measured in climate change includes: Rainfall, Sunshine hours, Temperature, Relative
humidity, Atmospheric pressure, Wind speed .
However, there are various instruments used for the measuring of climate
change and they can be classified as follows: weather balloons and buoys, thermometers, wind anemometers,
Manual rain gauges, transmitting rainfall gauges and Automatic Weather
Stations
The answer is <span>potato.
Potato is a stem tuber while carrot, beetroot, and radish are true root crops and not tubers.
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Tuber is a structure that provides nutrients for the next season regrowth. It is specialised for asexual reproduction. Potato is a stem tuber, for example. In one growing season, the tuber is produced and used to perennate the plant. In the autumn, when the plant structure above-ground dies, the tuber survives underground over the winter. When spring comes, tuber regenerates new shoots thanks to nutrients stored. On the other hand, true root crops (carrot, beetroot, radish) are modified roots to store energy but they are not specialised for asexual reproduction.
