2018 source guide · Biology

NEET 2018 Biology Reproduction Questions

Use this page to connect the official 2018 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 318 verified questions →Check official NTA archive ↗

What to master

plant sexual reproduction, human reproduction and reproductive health.

Original practice preview

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

Example 1 · difficulty 4/5

If the chorionic gonadotropin produced shortly after implantation were completely absent, the earliest predictable consequence in a five-week-old pregnancy would be:

A. Immediate onset of labour due to loss of uterine quiescence
B. Degeneration of the corpus luteum followed by withdrawal bleeding
C. Failure of the inner cell mass to form the three germ layers
D. Complete cessation of FSH and LH suppression by maternal feedback

Example 2 · difficulty 1/5

During the initial few days of lactation the mammary glands secrete a yellowish fluid that plays a key role in protecting the newborn against infections. The protective constituents of this fluid are:

A. Digestive enzymes such as proteases
B. Several antibodies (immunoglobulins)
C. High concentrations of maternal progesterone
D. Nucleic acids transferred for passive immunity

Example 3 · difficulty 1/5

'Saheli', promoted as an ideal contraceptive for females, is taken once a week. It differs from most conventional oral contraceptive pills because it:

A. contains a fixed combination of estrogen and progestin derivatives
B. is a steroidal preparation that abolishes ovulation permanently
C. is a non-steroidal preparation with high contraceptive value and negligible side effects
D. acts as a spermicide inside the female reproductive tract

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

Sexual Reproduction in Flowering Plants →Human Reproduction →Reproductive Health →

Frequently asked questions

Are these official NEET 2018 Biology Reproduction 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 2018 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.