The Question is from neet-zoology , and it was created by the author A SUBRAMANYAM

Question

Difference between ZIFT and IUT lies in the

A SUBRAMANYAM · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
**Primary Concept**: Assisted Reproductive Technologies (ART)
**Related Topics**: In vitro fertilization (IVF), Embryo transfer
**Prerequisites**: Basic understanding of human reproduction and ART
## SOLUTION PATHWAY
**Given Information**:
* ZIFT and IUT are ART procedures.
* Need to identify the key difference between the two.
**Method & Steps**:
1. **Recall the definitions of ZIFT and IUT**: ZIFT involves transferring a zygote (fertilized egg) into the fallopian tube, while IUT involves transferring an embryo into the uterus.
    Reasoning: Understanding the location of transfer is crucial to differentiate between the two methods
2. **Analyze the options**: 
    * A. Methodology: Both methods involve embryo transfer, so the methodology is similar but the location of transfer is different.
    * B. Nature of the sperms: Sperm used in both the process are same
    * C. Nature of the cells: Both procedures involve fertilized cells.
    * D. Number of the cells: ZIFT transfers a single-celled zygote, while IUT transfers a multi-celled embryo. This is the main difference.

3. **Final step**: Select the option that accurately describes the primary difference between ZIFT and IUT.

Result: Option D is the correct answer.
Verification: The number of cells is the key difference between a zygote and an embryo.
## OPTION ANALYSIS
[A] :x: The methodology is similar, but the location of transfer is different.
[B] :x: The nature of sperms is not a differentiating factor for these two procedures.
[C] :x: Both procedures work with fertilized cells.
[D] ✓: ZIFT involves a zygote (single-celled), while IUT involves a multi-celled embryo, so the number of the cells is the key difference.
## LEARNING AIDS
**Common Mistakes**:
1. Confusing ZIFT and IUT with other ART procedures: Understand that ZIFT is a zygote transfer and IUT is an embryo transfer.
2. Focusing on minute differences when the major difference is the number of cells.
**Quick Tips**:
1. Remember that 'Z' in ZIFT represents 'zygote' (single-celled). IUT is later stage when cell starts dividing, 'I' in IUT represents 'Intrauterine' transfer of embryo.

A SUBRAMANYAM · Answer

Methodology

A SUBRAMANYAM · Answer

Nature of the sperms

A SUBRAMANYAM · Answer

Nature of the cells

A SUBRAMANYAM · Answer

The correct Option is "Number of the cells"

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