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1. Nausea and vomiting – which usually get better over time.
2. Internal bleeding – which can lead to blood clots forming.
3. Leaking from where the stomach has been closed.
4. Acid reflux – where stomach acid leaks back up into the oesophagus.
Option "C" is correct.
The reason is that, form the two experiments it was concluded that both O1 and O2 were recessive, so all these remaining options which says that any or both of them are dominant are incorrect.
Gaining it back if she doesn't workout or eat right
B, you take in more calories than you burn.
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The first geneticist has identified an obese allele that he or she believes to be recessive. We will define his or her allele as o1 and the normal allele as O1. The obese allele appears to be recessive based on the series of crosses he or she performed.
Cross 1 with possible genotype:
Obese (o1o1) × Normal (O1O1) F1 All normal (O1o1)
Cross 2 with possible genotypes:
F1 normal (Oo1) × F1 normal (O1o1) F28 normal (O1O1 and O1o1)
2 obese (o1o1)
Cross 3 with possible genotypes:
Obese (o1o1) × Obese (o1o1) All Obese (o1o1)
A second geneticist also finds an obese mouse in her colony and performs the same types of crosses, which indicate to her that the obese allele is recessive. We will define her obese allele as o2 and the normal allele as O2.
The cross of obese mice between the two different laboratories produced only normal mice. These different alleles are both recessive. However, they are located at different gene loci. Essentially, the obese mice from the different labs have separate obesity genes that are independent of one another.
The likely genotypes of the obese mice are as follows:
Obese mouse 1 (o1o1O2O2) × Obese mouse 2 (O1O1o2o2)
F1 All normal (O1o1O2o2)
c. Both alleles are recessive, but they must be located at different gene loci.
If he inbred normal mice and obese mice , all the F1 mice are normal.
F1 and F1 interbred : 8 are normal and 2 are obese.
obese and obese = all are obese.
hence O1 proved as recessive allele.
in second experiment :
O2 is proved as recessive allele.
But when both obese mice of different laboratories are inter-crossed, all the offspring are normal, hence it is proved that Both alleles are recessive, but they must be located at different gene loci.
Obesity doesn't have a direct linkage of behavior. It can occur for many reasons suchas lifestyle, hereditary, overeating, and not having a eating/ moving balance. Obesity mainly occurs when their is an imbalance and a person is intaking more calories through food than they are letting out through physical activity. But obesity can also just be normal for certain families that have bigger body muscles or features than is expected. Most of the time you can differentiate between lazy obesity and natural obesity.