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🔬 Biology  ·  Reproductive Health  ·  NEET

Preimplantation Genetic Diagnosis (PGD) is performed in conjunction with which ART to screen embryos before transfer?

Answer: IVF-ET.

  • A IUI
  • B GIFT
  • C IVF-ET
  • D Surrogacy only

Correct answer: C. IVF-ET

Explanation: PGD is performed on embryos created by IVF before their transfer into the uterus. A single cell is biopsied from the 8-cell embryo for genetic analysis to detect chromosomal or single-gene disorders.

Contraceptive Methods by CategoryNaturalabstinence,withdrawalBarriercondom (alsoblocks STIs)IUDCuT, LippesloopHormonalpills, injectables,implantsSurgicalvasectomy,tubectomyEffectiveness and permanence generally increase left→right; only barrier methods stop STI transmission

Contraceptive methods span a spectrum from temporary/natural to permanent/surgical; condoms stand out as the only method offering STI protection alongside contraception.

Concept context

Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.

Read the full Reproductive Health notes →