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Home/NEET/biology/reproduction in organisms
Curated PYQ Collection

Top 50 Most Repeated REPRODUCTION IN ORGANISMS PYQs | NEET

A curated collection of the most important questions from REPRODUCTION IN ORGANISMS, fully solved with step-by-step concepts to prepare for NEET.

Question #1

Practice Question

A.Spermatogonia phase
B.Primary spermatocyte phase
C.Secondary spermatocyte phase
D.Spermatid phase

Concept Applied

During the spermatid phase, secondary spermatocytes undergo meiosis II to produce haploid spermatids. Earlier phases involve diploid spermatogonia and...

Read Full Step-by-Step Solution β†’

Question #2

Practice Question

A.Rapid population growth
B.Genetic variations
C.No need for gametes
D.Clonal offspring

Concept Applied

Sexual reproduction generates variations, crucial for adaptation and evolution....

Read Full Step-by-Step Solution β†’

Question #3

Practice Question

A.Uterus
B.Ovary
C.Ampulla of oviduct
D.Isthmus of oviduct

Concept Applied

Fertilisation takes place at the ampullary-isthmic junction....

Read Full Step-by-Step Solution β†’

Question #4

Practice Question

A.Plasmodium
B.Amoeba
C.Yeast
D.Hydra

Concept Applied

Plasmodium undergoes multiple fission; others use binary fission or budding....

Read Full Step-by-Step Solution β†’

Question #5

Practice Question

A.Mitosis
B.Binary fission
C.Crossing over
D.Budding

Concept Applied

Crossing over in prophase I of meiosis shuffles genes between homologous chromosomes....

Read Full Step-by-Step Solution β†’

Question #6

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs exhibit external fertilisation in water; others are internal....

Read Full Step-by-Step Solution β†’

Question #7

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs release gametes in water β†’ external fertilisation....

Read Full Step-by-Step Solution β†’

Question #8

Practice Question

A.Mitosis
B.Meiosis
C.Binary fission
D.Budding

Concept Applied

Zygote divides by mitosis to maintain diploid chromosome number during embryogenesis....

Read Full Step-by-Step Solution β†’

Question #9

Practice Question

A.3-4 days
B.7-8 days
C.14 days
D.28 days

Concept Applied

The blastocyst implants into the endometrium roughly one week after fertilization....

Read Full Step-by-Step Solution β†’

Question #10

Practice Question

A.Yeast
B.Hydra
C.Amoeba
D.Spirogyra

Concept Applied

Binary fission is a type of asexual reproduction where a single organism divides into two equal daughter cells. It is commonly observed in unicellular...

Read Full Step-by-Step Solution β†’

Question #11

Practice Question

A.Fertilization
B.Gametogenesis
C.Pollination
D.Embryogenesis

Concept Applied

Fertilization is the fusion of male and female gametes to form zygote....

Read Full Step-by-Step Solution β†’

Question #12

Practice Question

A.Yeast
B.Amoeba
C.Hydra
D.Planaria

Concept Applied

Amoeba undergoes binary fission; others use budding or regeneration....

Read Full Step-by-Step Solution β†’

Question #13

Practice Question

A.Gametogenesis -> Fertilization -> Embryogenesis
B.Fertilization -> Gametogenesis -> Embryogenesis
C.Embryogenesis -> Gametogenesis -> Fertilization
D.Gametogenesis -> Embryogenesis -> Fertilization

Concept Applied

Gametes form first, then fuse, followed by embryo development....

Read Full Step-by-Step Solution β†’

Question #14

Practice Question

A.The primary oocyte is arrested in prophase I of meiosis until puberty.
B.The primary oocyte completes meiosis I before birth and is arrested in metaphase I.
C.The primary oocyte is arrested in metaphase II until ovulation.
D.The primary oocyte undergoes meiosis II before birth and remains as a mature ovum.

Concept Applied

In human females, the primary oocyte begins meiosis during fetal development but halts at prophase I. It remains in this arrested state until each men...

Read Full Step-by-Step Solution β†’

Question #15

Practice Question

A.Cleavage β†’ blastocyst formation β†’ implantation
B.Blastocyst formation β†’ cleavage β†’ implantation
C.Implantation β†’ cleavage β†’ blastocyst formation
D.Cleavage β†’ implantation β†’ blastocyst formation

Concept Applied

After fertilisation the zygote undergoes rapid mitotic divisions called cleavage, forming a morula that develops into a blastocyst. The blastocyst the...

Read Full Step-by-Step Solution β†’

Question #16

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Reproduction in Orga...

Read Full Step-by-Step Solution β†’

Question #17

Practice Question

A.Spermatogonia phase
B.Primary spermatocyte phase
C.Secondary spermatocyte phase
D.Spermatid phase

Concept Applied

During the spermatid phase, secondary spermatocytes undergo meiosis II to produce haploid spermatids. Earlier phases involve diploid spermatogonia and...

Read Full Step-by-Step Solution β†’

Question #18

Practice Question

A.Rapid population growth
B.Genetic variations
C.No need for gametes
D.Clonal offspring

Concept Applied

Sexual reproduction generates variations, crucial for adaptation and evolution....

Read Full Step-by-Step Solution β†’

Question #19

Practice Question

A.Uterus
B.Ovary
C.Ampulla of oviduct
D.Isthmus of oviduct

Concept Applied

Fertilisation takes place at the ampullary-isthmic junction....

Read Full Step-by-Step Solution β†’

Question #20

Practice Question

A.Plasmodium
B.Amoeba
C.Yeast
D.Hydra

Concept Applied

Plasmodium undergoes multiple fission; others use binary fission or budding....

Read Full Step-by-Step Solution β†’

Question #21

Practice Question

A.Mitosis
B.Binary fission
C.Crossing over
D.Budding

Concept Applied

Crossing over in prophase I of meiosis shuffles genes between homologous chromosomes....

Read Full Step-by-Step Solution β†’

Question #22

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs exhibit external fertilisation in water; others are internal....

Read Full Step-by-Step Solution β†’

Question #23

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs release gametes in water β†’ external fertilisation....

Read Full Step-by-Step Solution β†’

Question #24

Practice Question

A.Mitosis
B.Meiosis
C.Binary fission
D.Budding

Concept Applied

Zygote divides by mitosis to maintain diploid chromosome number during embryogenesis....

Read Full Step-by-Step Solution β†’

Question #25

Practice Question

A.3-4 days
B.7-8 days
C.14 days
D.28 days

Concept Applied

The blastocyst implants into the endometrium roughly one week after fertilization....

Read Full Step-by-Step Solution β†’

Question #26

Practice Question

A.Yeast
B.Hydra
C.Amoeba
D.Spirogyra

Concept Applied

Binary fission is a type of asexual reproduction where a single organism divides into two equal daughter cells. It is commonly observed in unicellular...

Read Full Step-by-Step Solution β†’

Question #27

Practice Question

A.Fertilization
B.Gametogenesis
C.Pollination
D.Embryogenesis

Concept Applied

Fertilization is the fusion of male and female gametes to form zygote....

Read Full Step-by-Step Solution β†’

Question #28

Practice Question

A.Yeast
B.Amoeba
C.Hydra
D.Planaria

Concept Applied

Amoeba undergoes binary fission; others use budding or regeneration....

Read Full Step-by-Step Solution β†’

Question #29

Practice Question

A.Gametogenesis -> Fertilization -> Embryogenesis
B.Fertilization -> Gametogenesis -> Embryogenesis
C.Embryogenesis -> Gametogenesis -> Fertilization
D.Gametogenesis -> Embryogenesis -> Fertilization

Concept Applied

Gametes form first, then fuse, followed by embryo development....

Read Full Step-by-Step Solution β†’

Question #30

Practice Question

A.The primary oocyte is arrested in prophase I of meiosis until puberty.
B.The primary oocyte completes meiosis I before birth and is arrested in metaphase I.
C.The primary oocyte is arrested in metaphase II until ovulation.
D.The primary oocyte undergoes meiosis II before birth and remains as a mature ovum.

Concept Applied

In human females, the primary oocyte begins meiosis during fetal development but halts at prophase I. It remains in this arrested state until each men...

Read Full Step-by-Step Solution β†’

Question #31

Practice Question

A.Cleavage β†’ blastocyst formation β†’ implantation
B.Blastocyst formation β†’ cleavage β†’ implantation
C.Implantation β†’ cleavage β†’ blastocyst formation
D.Cleavage β†’ implantation β†’ blastocyst formation

Concept Applied

After fertilisation the zygote undergoes rapid mitotic divisions called cleavage, forming a morula that develops into a blastocyst. The blastocyst the...

Read Full Step-by-Step Solution β†’

Question #32

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Reproduction in Orga...

Read Full Step-by-Step Solution β†’

Question #33

Practice Question

A.Spermatogonia phase
B.Primary spermatocyte phase
C.Secondary spermatocyte phase
D.Spermatid phase

Concept Applied

During the spermatid phase, secondary spermatocytes undergo meiosis II to produce haploid spermatids. Earlier phases involve diploid spermatogonia and...

Read Full Step-by-Step Solution β†’

Question #34

Practice Question

A.Rapid population growth
B.Genetic variations
C.No need for gametes
D.Clonal offspring

Concept Applied

Sexual reproduction generates variations, crucial for adaptation and evolution....

Read Full Step-by-Step Solution β†’

Question #35

Practice Question

A.Uterus
B.Ovary
C.Ampulla of oviduct
D.Isthmus of oviduct

Concept Applied

Fertilisation takes place at the ampullary-isthmic junction....

Read Full Step-by-Step Solution β†’

Question #36

Practice Question

A.Plasmodium
B.Amoeba
C.Yeast
D.Hydra

Concept Applied

Plasmodium undergoes multiple fission; others use binary fission or budding....

Read Full Step-by-Step Solution β†’

Question #37

Practice Question

A.Mitosis
B.Binary fission
C.Crossing over
D.Budding

Concept Applied

Crossing over in prophase I of meiosis shuffles genes between homologous chromosomes....

Read Full Step-by-Step Solution β†’

Question #38

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs exhibit external fertilisation in water; others are internal....

Read Full Step-by-Step Solution β†’

Question #39

Practice Question

A.Frog
B.Human
C.Bird
D.Reptile

Concept Applied

Frogs release gametes in water β†’ external fertilisation....

Read Full Step-by-Step Solution β†’

Question #40

Practice Question

A.Mitosis
B.Meiosis
C.Binary fission
D.Budding

Concept Applied

Zygote divides by mitosis to maintain diploid chromosome number during embryogenesis....

Read Full Step-by-Step Solution β†’

Question #41

Practice Question

A.3-4 days
B.7-8 days
C.14 days
D.28 days

Concept Applied

The blastocyst implants into the endometrium roughly one week after fertilization....

Read Full Step-by-Step Solution β†’

Question #42

Practice Question

A.Yeast
B.Hydra
C.Amoeba
D.Spirogyra

Concept Applied

Binary fission is a type of asexual reproduction where a single organism divides into two equal daughter cells. It is commonly observed in unicellular...

Read Full Step-by-Step Solution β†’

Question #43

Practice Question

A.Fertilization
B.Gametogenesis
C.Pollination
D.Embryogenesis

Concept Applied

Fertilization is the fusion of male and female gametes to form zygote....

Read Full Step-by-Step Solution β†’

Question #44

Practice Question

A.Yeast
B.Amoeba
C.Hydra
D.Planaria

Concept Applied

Amoeba undergoes binary fission; others use budding or regeneration....

Read Full Step-by-Step Solution β†’

Question #45

Practice Question

A.Gametogenesis -> Fertilization -> Embryogenesis
B.Fertilization -> Gametogenesis -> Embryogenesis
C.Embryogenesis -> Gametogenesis -> Fertilization
D.Gametogenesis -> Embryogenesis -> Fertilization

Concept Applied

Gametes form first, then fuse, followed by embryo development....

Read Full Step-by-Step Solution β†’

Question #46

Practice Question

A.The primary oocyte is arrested in prophase I of meiosis until puberty.
B.The primary oocyte completes meiosis I before birth and is arrested in metaphase I.
C.The primary oocyte is arrested in metaphase II until ovulation.
D.The primary oocyte undergoes meiosis II before birth and remains as a mature ovum.

Concept Applied

In human females, the primary oocyte begins meiosis during fetal development but halts at prophase I. It remains in this arrested state until each men...

Read Full Step-by-Step Solution β†’

Question #47

Practice Question

A.Cleavage β†’ blastocyst formation β†’ implantation
B.Blastocyst formation β†’ cleavage β†’ implantation
C.Implantation β†’ cleavage β†’ blastocyst formation
D.Cleavage β†’ implantation β†’ blastocyst formation

Concept Applied

After fertilisation the zygote undergoes rapid mitotic divisions called cleavage, forming a morula that develops into a blastocyst. The blastocyst the...

Read Full Step-by-Step Solution β†’

Question #48

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Reproduction in Orga...

Read Full Step-by-Step Solution β†’

Question #49

Practice Question

A.Spermatogonia phase
B.Primary spermatocyte phase
C.Secondary spermatocyte phase
D.Spermatid phase

Concept Applied

During the spermatid phase, secondary spermatocytes undergo meiosis II to produce haploid spermatids. Earlier phases involve diploid spermatogonia and...

Read Full Step-by-Step Solution β†’

Question #50

Practice Question

A.Rapid population growth
B.Genetic variations
C.No need for gametes
D.Clonal offspring

Concept Applied

Sexual reproduction generates variations, crucial for adaptation and evolution....

Read Full Step-by-Step Solution β†’
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