Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Given below are some stages of human evolution. Arrange them in correct sequence (Past to Recent):
A. Homo habilis B. Homo sapiens C. Homo neanderthalensis D. Homo erectus
Choose the correct sequence of human evolution from the options given below:
Past → Recent: H. habilis → H. erectus → H. neanderthalensis → H. sapiens.
The following diagram showing restriction sites in E.coli cloning vector pBR322. Find the role of 'X' and 'Y' genes:
On the NCERT pBR322 map, X (rop) codes for a protein involved in plasmid replication; Y (tet) confers tetracycline resistance.
Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?
High $pO_2$, low $pCO_2$, low $H^+$ (high pH) and low temperature shift the Hb-O₂ curve left, favouring oxyhaemoglobin formation in alveoli.
In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on:
Anal cerci arise from the 10th abdominal segment in both male and female cockroaches.
Match List I with List II:
| List I | List II |
|---|---|
| A. Down's syndrome | I. $11^{\text{th}}$ chromosome |
| B. $\alpha$-Thalassemia | II. 'X' chromosome |
| C. $\beta$-Thalassemia | III. $21^{\text{st}}$ chromosome |
| D. Klinefelter's syndrome | IV. $16^{\text{th}}$ chromosome |
Choose the correct answer from the options given below:
Down — trisomy 21; $\alpha$-thal — chr 16; $\beta$-thal — chr 11; Klinefelter — extra X (XXY).
Which of the following is not a natural/traditional contraceptive method?
Vaults are a barrier (artificial) contraceptive; the rest are natural methods.
Which of the following are Autoimmune disorders?
A. Myasthenia gravis B. Rheumatoid arthritis C. Gout D. Muscular dystrophy E. Systemic Lupus Erythematosus (SLE)
Choose the most appropriate answer from the options given below:
Gout is a metabolic disorder; muscular dystrophy is genetic. Myasthenia gravis, rheumatoid arthritis and SLE are classical autoimmune diseases.
Which of the following statements is incorrect?
Bioreactors are designed for large-scale production (typically 100–1000 L or more), not small-scale cultures.
Match List I with List II:
| List I | List II |
|---|---|
| A. Non-medicated IUD | I. Multiload 375 |
| B. Copper releasing IUD | II. Progestogens |
| C. Hormone releasing IUD | III. Lippes loop |
| D. Implants | IV. LNG-20 |
Choose the correct answer from the options given below:
Lippes loop — non-medicated; Multiload 375 — Cu IUD; LNG-20 — hormone IUD; Implants — progestogens.
Which one is the correct product of DNA dependent RNA polymerase to the given template? $3'\text{ TACATGGCAAATATCCATTCA }5'$
RNA is complementary and antiparallel to the template; T → A and the new strand uses U instead of T.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.