plants are very susceptible to the papaya ringspot virus (PRSV), which stunts the growth of the fruit and negatively impacts the taste. By 1995, PRSV wiped out the Hawaiian papaya crop completely and made it impossible to produce papaya commercially. In 1998, Cornell University developed a genetically modified papaya called Rainbow that was resistant to PRSV and introduced it to Hawaii. Currently, 80% of the papaya cultivated in Hawaii is genetically modified to be resistant to PRSV. Which of the following rows identifies the effect of PRSV on the original papaya population and the reason why the population recovered? Select one:
plants are very susceptible to the papaya ringspot virus (PRSV), which stunts the growth of the fruit and negatively impacts the taste. By 1995, PRSV wiped out the Hawaiian papaya crop completely and made it impossible to produce papaya commercially. In 1998, Cornell University developed a genetically modified papaya called Rainbow that was resistant to PRSV and introduced it to Hawaii. Currently, 80% of the papaya cultivated in Hawaii is genetically modified to be resistant to PRSV. Which of the following rows identifies the effect of PRSV on the original papaya population and the reason why the population recovered? Select one:
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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52.
Papaya plants are very susceptible to the papaya ringspot virus (PRSV), which stunts the growth of the fruit and negatively impacts the taste. By 1995, PRSV wiped out the Hawaiian papaya crop completely and made it impossible to produce papaya commercially. In 1998, Cornell University developed a genetically modified papaya called Rainbow that was resistant to PRSV and introduced it to Hawaii. Currently, 80% of the papaya cultivated in Hawaii is genetically modified to be resistant to PRSV.
Which of the following rows identifies the effect of PRSV on the original papaya population and the reason why the population recovered?
Which of the following rows identifies the effect of PRSV on the original papaya population and the reason why the population recovered?
Select one:
a.
| Effect on the Original Population | Reason for Recovery |
|---|---|
| Population bottleneck | Some papaya had the PRSV-resistance gene. |
b.
| Effect on the Original Population | Reason for Recovery |
|---|---|
| Increased gene flow | The PRSV-resistance gene had to be artificially introduced to the papaya genome |
c.
| Effect on the Original Population | Reason for Recovery |
|---|---|
| Increased gene flow | Papaya in the original population lacked the PRSV-resistance gene. |
d.
| Effect on the Original Population | Reason for Recovery |
|---|---|
| Population bottleneck | An increased mutation rate allowed for new PRSV-resistant alleles to be created. |
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