Biology · NEET-UG

NEET-UG 2021 · Code M1

2021400 marks100 questions

78 of its 100 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.

Source: NEET (UG) 2021, 12 September 2021, Test Booklet Code M1, Biology, published by NTA. The official PDF

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78 questions

Q101Section A4 marks
$Which of the following plants is monoecious ?$
1. A $Carica papaya$
2. B $Chara$
3. C $Marchantia polymorpha$
4. D $Cycas circinalis$
Q102Section A4 marks
$A typical angiosperm embryo sac at maturity is :$
1. A $8-nucleate and 7-celled$
2. B $7-nucleate and 8-celled$
3. C $7-nucleate and 7-celled$
4. D $8-nucleate and 8-celled$
Q103Section A4 marks
$Gemmae are present in :$
1. A $Mosses$
2. B $Pteridophytes$
3. C $Some Gymnosperms$
4. D $Some Liverworts$
Q104Section A4 marks
$When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :$
1. A $Metacentric$
2. B $Telocentric$
3. C $Sub-metacentric$
4. D $Acrocentric$
Q105Section A4 marks
$Which of the following stages of meiosis involves division of centromere ?$
1. A $Metaphase I$
2. B $Metaphase II$
3. C $Anaphase II$
4. D $Telophase II$
Q106Section A4 marks
$The first stable product of CO₂ fixation in sorghum is :$
1. A $Pyruvic acid$
2. B $Oxaloacetic acid$
3. C $Succinic acid$
4. D $Phosphoglyceric acid$
Q107Section A4 marks
$The factor that leads to Founder effect in a population is :$
1. A $Natural selection$
2. B $Genetic recombination$
3. C $Mutation$
4. D $Genetic drift$
Q108Section A4 marks
$Which of the following is an incorrect statement ?$
1. A $Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles.$
2. B $Microbodies are present both in plant and animal cells.$
3. C $The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.$
4. D $Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm.$