It has been hypothesized that people who are heterozygous for the allele that causes the deadly genetic condition cystic fibrosis (which, among other symptoms, reduces fertility) are more resistant to the deadly disease tuberculosis. If the cystic fibrosis allele protects against tuberculosis the same way the sickle-cell allele protects against malaria, then which of the following should be true of a comparison between regions with and without tuberculosis? a) Cystic fibrosis deaths should be more common in regions with tuberculosis. b) Cystic fibrosis deaths should be less common in regions with tuberculosis. c) Cystic fibrosis deaths should be equally common in both types of regions. d) Regional differences in the cystic fibrosis death rate should be purely random and unpredictable.

Question

Biology

Olivia Black

31 January, 03:13

It has been hypothesized that people who are heterozygous for the allele that causes the deadly genetic condition cystic fibrosis (which, among other symptoms, reduces fertility) are more resistant to the deadly disease tuberculosis. If the cystic fibrosis allele protects against tuberculosis the same way the sickle-cell allele protects against malaria, then which of the following should be true of a comparison between regions with and without tuberculosis? a) Cystic fibrosis deaths should be more common in regions with tuberculosis. b) Cystic fibrosis deaths should be less common in regions with tuberculosis. c) Cystic fibrosis deaths should be equally common in both types of regions. d) Regional differences in the cystic fibrosis death rate should be purely random and unpredictable.

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Answers (1)

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May · Answer 1

A. Cystic fibrosis deaths should be more common in the regions with tuberculosis.

Explanation:

Cystic fibrosis is a type of genetic disorder which affects the lungs mostly. Its long-term symptoms include uneasy breathing and coughing up mucus from lung infections. Therefore, In a place where tuberculosis is predominant, cyctic fibrosis death will rise.