Q.51 Zoology ⭐ 360° Option Elimination Active

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NEET 2020 Zoology Question 51 Solution

Topic: Reproductive Health · Official NTA Booklet Code E1

Question

Select the option including all sexually transmitted diseases.

(1)Gonorrhoea, Syphilis, Genital herpes
(2)Gonorrhoea, Malaria, Genital herpes
(3)AIDS, Malaria, Filaria
(4)Cancer, AIDS, Syphilis

✓

Verified Against NTA Final Answer Key

Option (1) : Gonorrhoea, Syphilis, Genital herpes

📚 Reproductive Health Easy

📋 Given Parameters & Problem Setup

Category Sexually Transmitted Diseases (STDs / STIs)

Question Objective Select the option where ALL listed diseases are sexually transmitted

⚡

The 30-Second Exam Hall Shortcut: ⚡ "Malaria = Mosquito; Cancer = Non-infectious! STD Option has Gonorrhoea, Syphilis, Genital Herpes!"

⏱️ 20 seconds

Malaria and Filaria are vector-borne diseases transmitted by mosquito bites (exclude Options 2 and 3). Cancer is a non-infectious cellular disorder (exclude Option 4). Gonorrhoea, Syphilis, and Genital herpes are all 100% STIs. Mark Option (1) in 5 seconds!

1 Malaria is transmitted by female Anopheles mosquito (not an STD).

2 Filaria is transmitted by Culex mosquito (not an STD).

3 Cancer is non-communicable (not an STD).

4 Gonorrhoea (Neisseria), Syphilis (Treponema), Genital herpes (HSV-2) are all true STDs.

5 Select Option (1).

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Reproductive Health (Sexually Transmitted Infections: STIs)

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Define Sexually Transmitted Diseases (STDs)

Diseases or infections which are transmitted through sexual intercourse are collectively called sexually transmitted diseases (STDs), venereal diseases (VD), or reproductive tract infections (RTI).

Step 2

Examine Option (1)

Gonorrhoea (bacterial, Neisseria gonorrhoeae), Syphilis (bacterial, Treponema pallidum), and Genital herpes (viral, Herpes simplex virus) are all classic, well-documented STDs transmitted via sexual contact.

Step 3

Examine Option (2) and (3)

Both contain Malaria (caused by Plasmodium, transmitted by female Anopheles mosquito bite) and Option (3) contains Filaria (caused by Wuchereria, transmitted by female Culex mosquito). Neither is an STD.

Step 4

Examine Option (4)

Contains Cancer, which is non-infectious uncontrollable mitotic cell division resulting from oncogenic transformation, not an STD.

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 A

✓ 100% Correct

Verdict & Scientific Reason:

Factually exact; all three diseases are sexually transmitted infections.

💡

Why this is airtight: None; straightforward STD classification.

2 B

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; Malaria is a vector-borne protozoan disease transmitted by female Anopheles mosquitoes, not sexually transmitted.

⚠️

Student Fallacy (Why candidates pick this trap): Students overlooking the obvious distractor "Malaria".

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; Malaria and Filaria are mosquito-borne diseases, not STDs.

⚠️

Student Fallacy (Why candidates pick this trap): Focusing on AIDS and forgetting to check the other two entries.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; cancer is a non-communicable neoplasm, not a sexually transmitted infection.

⚠️

Student Fallacy (Why candidates pick this trap): Overlooking Cancer in the list.

⚠️

NTA Trap Alert: Scan Every Item in the Triplet

Test writers intentionally place two STDs with one mosquito-borne disease (e.g. Gonorrhoea + Malaria + Genital herpes).

🛡️ How to avoid the -1 mark: Spot the intruder: Malaria, Filaria, and Cancer are NOT sexually transmitted!

📖

Core NEET Syllabus Standard

Zoology · Reproductive Health Standard Benchmark

Core Scientific Principle Tested:

Syllabus Focus: Classification of Sexually Transmitted Diseases (STDs / STIs)

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2020 Zoology Question 51 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ "Malaria = Mosquito; Cancer = Non-infectious! STD Option has Gonorrhoea, Syphilis, Genital Herpes!"

Step-by-Step Rigorous Workflow & Mathematical Proof

Define Sexually Transmitted Diseases (STDs)

Examine Option (1)

Examine Option (2) and (3)

Examine Option (4)

360° Option Elimination Engine Key Feature

NTA Trap Alert: Scan Every Item in the Triplet

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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