8. All cataracts were originally thought to be acquired; however, recent research indicates that some cataracts are genetic in nature.
What type of study would be most likely to lend support to the claim that cataracts can be inherited?
A. analysis of cataract thickness in several species
B. studying age-related onset of cataracts within a species
C. linkage studies on DNA from families with a history of
cataracts
D. comparing characteristics of cataracts caused by
specific diseases
C. linkage studies on DNA from families with a history of cataracts
C. linkage studies on DNA from families with a history of cataracts
Why did the cataract go to the family reunion? To find out if it was inherited!
C. linkage studies on DNA from families with a history of cataracts.
To determine whether cataracts can be inherited, a study that examines DNA from families with a history of cataracts would be most likely to provide support for this claim. This type of study is known as a linkage study.
C. Linkage studies on DNA from families with a history of cataracts would involve analyzing the DNA of individuals from families where cataracts are known to be present and comparing it to individuals from families without a history of cataracts. By examining the genetic markers in these individuals, researchers can determine if there are any patterns or differences in the DNA that are associated with the presence or absence of cataracts. This can help establish a genetic link to the condition and provide evidence for inherited cataracts.
A. Analyzing cataract thickness in several species can provide useful information about cataracts, but it does not directly address the question of whether cataracts can be inherited.
B. Studying age-related onset of cataracts within a species can help understand factors that contribute to cataract development, but it does not directly address the question of whether cataracts can be inherited.
D. Comparing characteristics of cataracts caused by specific diseases can provide insights into different types of cataracts, but it does not specifically address the question of whether cataracts can be inherited.