2017 source guide · Biology

NEET 2017 Biology Genetics Questions

Use this page to connect the official 2017 paper with current Biology practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 275 verified questions →Check official NTA archive ↗

What to master

inheritance patterns, linkage, molecular genetics, gene expression and variation.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 1/5

A female patient shows short stature, rudimentary ovaries, absence of secondary sexual characters and sterility. Karyotyping reveals a total chromosome number of 45. Which chromosomal composition corresponds to this diagnosis?

A. 44 autosomes plus a single X chromosome (44 + XO)
B. 44 autosomes plus XXY sex chromosomes (44 + XXY)
C. 44 autosomes plus three X chromosomes (44 + XXX)
D. 21 pairs of autosomes plus XY sex chromosomes

Example 2 · difficulty 2/5

In the bacteriophage infection experiment of Hershey and Chase, radioactivity was detected in the pellet after blending and centrifugation when the phages were labelled with ³²P. This observation indicated that

A. ³⁵S-labelled protein had entered the bacterial cells
B. ³²P-labelled DNA had entered the bacterial cells
C. ³²P specifically labels the protein coat of the phage
D. ³⁵S had become trapped inside the bacterial cell wall

Example 3 · difficulty 1/5

A double-stranded DNA fragment contains 600 adenine bases out of a total of 2000 nitrogen bases. Applying Chargaff's rule, the number of guanine bases in this fragment is

A. 200
B. 400
C. 600
D. 800

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Principles of Inheritance and Variation →Molecular Basis of Inheritance →

Frequently asked questions

Are these official NEET 2017 Biology Genetics PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2017 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.