Question

Difficulty: MediumApplications of Genetics in Medicine and Agriculture

Match each application of genetics in medicine and agriculture listed on the left with its correct biological purpose or effect on the right.

  • Genetic counselingEvaluating the prospective risk of transmitting hereditary disorders such as sickle-cell anemia to offspring
  • Hybrid vigor (Heterosis)Producing outbred F1F_1 offspring that exhibit enhanced yield, growth rate, and disease resistance relative to both pure-line parents
  • Anti-Rh immunoglobulin administrationPreventing erythroblastosis fetalis in subsequent Rhesus-positive fetuses carried by a Rhesus-negative mother
  • Selective breedingCombining desirable traits over generations by intentionally mating selected parent organisms

Answer

Genetic counseling matches with evaluating hereditary disorder risks in prospective offspring; Hybrid vigor matches with producing outbred F1F_1 progeny superior to both parents; Anti-Rh immunoglobulin administration matches with preventing erythroblastosis fetalis in subsequent pregnancies; Selective breeding matches with combining desirable traits over generations by mating selected parents.
Each application correctly pairs with its defined mechanism: genetic counseling evaluates hereditary disease risks, hybrid vigor enhances phenotypic performance via crossbreeding, anti-Rh immunoglobulin prevents maternal immunization against Rh-positive fetal red cells, and selective breeding increases desirable trait frequencies across generations.

Step-by-Step Solution

1
Identify medical applications of genetic principles.
Genetic counseling assesses hereditary disease transmission risks, whereas anti-Rh immunoglobulin therapy prevents maternal Rh-sensitization and subsequent erythroblastosis fetalis.
These procedures apply genetic knowledge to clinical prevention and family planning.
2
Identify agricultural applications of genetic principles.
Selective breeding accumulates favorable traits over successive generations, while heterosis produces high-yielding, vigorous F1F_1 hybrids by crossing diverse pure lines.
These techniques utilize genetic selection and hybridization to improve crop yields and livestock quality.

Key Concept

Applications of Genetics in Medicine and Agriculture
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