Madeline is 9 years old and considered obese. While her parents acknowledge that they could adopt a healthier lifestyle, they blame genetics for her weight problem. How many genes are estimated to influence Madelines weight?
A. 1
B. 25
C. 100
D. more than 200

Option-D

Explanation:

Obesity refers to a disease in which the person accumulates a high amount of fat due to lifestyle with less physical activity but a very high amount of energy intake.

Obesity is not just influenced by the environment but by genetics also.  The genetic studies on the accumulation of fat involve more than 200 genes in which one of the genes is fat mass and obesity-associated gene or FTO gene.  This gene can cause increased hunger level, reduced satiety, and influence other genes.

Thus, Option-D is correct.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

ans.

in united states (us), the first leading cause of death for both women and men is heart diseases that leads to more than half of the deaths. heart diseases develop due to narrow arteries, buildup of plaque in blood capillaries that arises difficulties in blood flow.

the second leading cause of deaths in us is cancer that affects individuals of all ages. it develops due to uncontrolled growth and spread of tumor cells, which results in death if the not controlled or treated.

the third leading cause of deaths in us is copd or chronic obstructive pulmonary disease. it includes difficulty in breathing, chest infections, and persistent cough. smocking is a leading cause of copd and around 80% of copd deaths occur due to smoking.

thus, the correct answer is 'option). cancer, copd, and heart disease.'