You Were Recently Introduced to Your Roommate's Sibling

question 95

Multiple Choice

You were recently introduced to your roommate's sibling.To your surprise,even though the siblings are the same sex,they look nothing alike.Which of the following is the best explanation of this situation?​ 

• A)They must have different parents, as genetic inheritance ensures that they share a significant number of genes. 
• B)Although they started out very similar genetically, their genotypes have changed during development to make them look very different. 
• C)Given the number of different combinations of genes possible during reproduction, it may be that the two siblings don't really share many gene alleles. 
• D)One has expressed only recessive genes, while the other has not.

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Definitions:

Windshield Survey

A method used in community health nursing where observations about a community's health are made from a car.

Demographic Data Review

The analysis of data regarding the characteristics of a population such as age, race, gender, income, and education.

Physical Assessment

A systematic examination of a patient's body conducted by a healthcare provider to detect any signs of disease or abnormalities.

Record Review

The process of examining and analyzing health records or other records to evaluate the quality of care or to gather data.