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The wall of the ovary forms

General Science Biology Zoology Class 12th NEET UG NEET UG Preparation

Q. 11 of Quiz-1423 (Que-ID : 2829)

The wall of the ovary forms

  • pericarp
  • fruit wall
  • fruit
  • both (a) and (b).

Ans → (d)both (a) and (b).

Explanation → both (a) and (b).

This question is taken from this post → Reproduction in organisms- (Class 12th Biology) Revision Test | MCQs For NEET - attemp/practice

More MCQs in - Reproduction in organisms- (Class 12th Biology) Revision Test | MCQs For NEET

Q. 1 of Quiz-1423 (Que-ID : 2819)

Which of the following groups is formed only of the hermaphrodite organisms?

  • Earthworm, tapeworm, housefly, frog
  • Earthworm, tapeworm, seahorse housefly
  • Earthworm, leech, sponge, roundworm
  • Earthworm, tapeworm, leech, sponge

Discuss View Answer

Q. 2 of Quiz-1423 (Que-ID : 2820)

Which of the following options shows bisexual animals only?

  • Amoeba, sponge, leech
  • Sponge, cockroach, Amoeba
  • Earthworm, sponge, leech
  • Tapeworm, earthworm, honeybee

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Q. 3 of Quiz-1423 (Que-ID : 2821)

Read the following statements and select the incorrect one.

  • Cucurbits and coconuts are monoecious plants
  • Papayas and date palms are dioecious plants.
  • Leeches and tapeworms are bisexual animals.
  • Sponges and coelenterates are unisexual animals

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Q. 4 of Quiz-1423 (Que-ID : 2822)

Meiosis does not occur in

  • asexually reproducing diploid individuals
  • sexually reproducing haploid individuals
  • sexually reproducing diploid individuals
  • all of these.

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Q. 5 of Quiz-1423 (Que-ID : 2823)

A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________gametes.

  • diploid, haploid
  • haploid, diploid
  • diploid, diploid
  • haploid, haploid

Discuss View Answer

Q. 6 of Quiz-1423 (Que-ID : 2824)

Which of the following organisms has the highest number of chromosomes?

  • Housefly
  • Butterfly
  • Ophioglossum
  • Onion

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Q. 7 of Quiz-1423 (Que-ID : 2825)

In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell?

  • 40
  • 30
  • 20
  • 10

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Q. 8 of Quiz-1423 (Que-ID : 2826)

If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?

  • 190
  • 380
  • 95
  • 760

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Q. 9 of Quiz-1423 (Que-ID : 2827)

In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is

  • water
  • air
  • pollination
  • apomixis

Discuss View Answer

Q. 10 of Quiz-1423 (Que-ID : 2828)

In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?

  • brinjal
  • cucumber
  • papaya
  • Bitter gourd

Discuss View Answer

Q. 11 of Quiz-1423 (Que-ID : 2829)

The wall of the ovary forms

  • pericarp
  • fruit wall
  • fruit
  • both (a) and (b).

Discuss View Answer

Q. 12 of Quiz-1423 (Que-ID : 2830)

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because

  • offspring do not possess exact copies of parental DNA
  • DNA of only one parent is copied and passed on to the offspring
  • offspring are formed at different times
  • DNA of parent and offspring are completely different

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Q. 13 of Quiz-1423 (Que-ID : 2831)

The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively

  • 12, 24, 12
  • 24, 12, 12
  • 12, 24, 24
  • 24, 12, 24

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Q. 14 of Quiz-1423 (Que-ID : 2832)

Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because

  • nodes are shorter than intemodes
  • nodes have meristematic cells
  • nodes are located near the soil
  • nodes have non-photosynthetic cells.

Discuss View Answer

Q. 15 of Quiz-1423 (Que-ID : 2833)

There is no natural death in single celled organisms like Amoeba and bacteria because

  • they cannot reproduce sexually
  • they reproduce be binary fission
  • parental body is distributed among the offspring
  • they are microscopic.

Discuss View Answer

Q. 16 of Quiz-1423 (Que-ID : 2834)

There are various types of reproduction. The type of reproduction adopted by an organism depends on

  • the habitat and morphology of the organism
  • morphology of the organism
  • morphology and physiology of the organism
  • the organisms habitat, physiology and genetic makeup.

Discuss View Answer

Q. 17 of Quiz-1423 (Que-ID : 2835)

Which of the following is a post-fertilisation event in flowering plants?

  • Transfer of pollen grains
  • Embryo development
  • Formation of flower
  • Formation of pollen grains

Discuss View Answer

Q. 18 of Quiz-1423 (Que-ID : 2836)

The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be

  • 20
  • 10
  • 40
  • 15

Discuss View Answer

Q. 19 of Quiz-1423 (Que-ID : 2837)

The growth phase of an organism before attaining sexual maturity is referred to as

  • juvenile phase
  • vegetative phase
  • both (a) and (b)
  • None of the above

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Q. 20 of Quiz-1423 (Que-ID : 2838)

Select the monocarpic plant out of the following.

  • Bamboo
  • Litchi
  • Mango
  • all of these.

Discuss View Answer

Q. 21 of Quiz-1423 (Que-ID : 2839)

Clear cut vegetative, reproductive and senescent phases cannot be observed in

  • annual plants
  • perennial plants
  • biennial plants
  • ephemeral plants.

Discuss View Answer

Q. 22 of Quiz-1423 (Que-ID : 2840)

Strobilanthus kunthiana flowers once in

  • 5 years
  • 12 years
  • 20 years
  • 50 years

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Q. 23 of Quiz-1423 (Que-ID : 2841)

Strobilanthus kunthiana differs from bamboo in

  • being monocarpic
  • length of juvenile phase
  • being polycarpic
  • none of these.

Discuss View Answer

Q. 24 of Quiz-1423 (Que-ID : 2842)

Oestrous cycle is reported in

  • cows and sheep
  • humans and monkeys
  • chimpanzees and gorillas
  • none of these.

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Q. 25 of Quiz-1423 (Que-ID : 2843)

Which of the following animals show menstrual cycle?

  • Gorillas and chimpanzees
  • Monkeys and humans
  • Orangutans and monkeys
  • All of these

Discuss View Answer

More MCQs In - General Science Biology Zoology Class 12th NEET UG NEET UG Preparation

Q. 2 of Quiz- (Que-ID : 3270)

Which of the followings plant material is an efficient water imbibant?

  • Agar
  • Cellulose
  • Lignin
  • Pectin

Discuss View Answer

Q. 23 of Quiz- (Que-ID : 3366)

Which of the following is incorrectly matched ?

  • Black rot of crucifers Bacteria
  • Brown rust of wheat Fungi
  • Late blight of potato Virus
  • Red rot of sugarcane Fungi

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3437)

Golden rice is a transgenic crop of the future with the following improved trail:

  • Insect resistance
  • Hight lysine (essential amino acid) content
  • High protein content
  • High vitamin A content

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 1710)

The red colour of the red sea is because of-

  • Red Algae
  • Brown algae
  • Cephaleuros
  • Trichodesmium erithraeum

Discuss View Answer

Q. 2 of Quiz- (Que-ID : 2645)

Which among the following have well developed respiratory system

  • Cockroaches
  • Earthworms
  • Sponges
  • Mammals

Discuss View Answer

Q. 14 of Quiz- (Que-ID : 2983)

Kidney transplantation is the ultimate method of correction in which case

  • Renal calculi
  • Renal failure
  • Uremia
  • None of the above

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 2994)

Golgi complex and endoplasmic reticulum cannot be seen during

  • late telophase
  • late prophase
  • early anaphase
  • late metaphase

Discuss View Answer

Q. 13 of Quiz- (Que-ID : 3056)

Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?

  • Cytochrome c
  • cytochrome a3
  • cytochrome a
  • FADH2

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3387)

Which of the following steps is taken by the Ministry of Environment and Forests to protect rivers from water pollition ?

  • Ganga Action Plan
  • Narmada Action Plan
  • Yamuna Action Plan
  • Both (a) and (c)

Discuss View Answer

Q. 2 of Quiz- (Que-ID : 2795)

During resting state, fluid outside axon contains

  • low concentration of K+
  • low concentration of Na+
  • low concentration of Cl–
  • high concentration of Cl–

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Q. 16 of Quiz- (Que-ID : 2734)

Classification is not based on

  • Thallus organisation
  • Cell structure
  • Gross morphology
  • Phylogenetic relationship

Discuss View Answer

Q. 2 of Quiz- (Que-ID : 3370)

Which of the following is not used as a biopesticide ?

  • Trichoderma harzianum
  • Nucleopolyhedrovirus
  • Xanthomonas campestris
  • Bacillus thuringiensis

Discuss View Answer

Q. 17 of Quiz- (Que-ID : 2660)

How many percent of co2 is carried by plasma in dissolved form

  • 6
  • 7
  • 20-25
  • None of the above

Discuss View Answer

Q. 7 of Quiz- (Que-ID : 2825)

In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell?

  • 40
  • 30
  • 20
  • 10

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 2644)

Which among the following does not exchange o2 with CO2 through simple diffusion

  • Earthworms
  • Earthworms
  • Sponges
  • Flatworms

Discuss View Answer

Q. 9 of Quiz- (Que-ID : 3027)

Which one of the followings is a gaseous plant hormone?

  • Ethylene
  • Gibberellin
  • IAA
  • Abscisic acid

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 3094)

In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the

  • bending of leaf tip
  • formation of anthocyanins
  • poor development of vasculature
  • appearance of dead necrotic tissue

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Q. 8 of Quiz- (Que-ID : 2676)

Which among the following WBC secrete histamine, serotonin,heparin

  • Eosinophil
  • Neutrophil
  • Basophil
  • None of the above

Discuss View Answer

Q. 9 of Quiz- (Que-ID : 2752)

Which of the following is male sex organs

  • Insulins
  • Aldosterone
  • Androgens
  • Pheromones

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Q. 22 of Quiz- (Que-ID : 2915)

Which of the following groups of cells in the male gonad, represent haploid cells ?

  • Spermatogonial cells
  • Germinal epithelial cells
  • Secondary spermatocytes
  • Primary spermatocytes

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Q. 1 of Quiz- (Que-ID : 3519)

Which chemical substance affects the Ozone Layer?

  • Chlorofluorocarbon
  • Chlorine
  • Hexafluorocarbon
  • Molecular Carbon

Discuss View Answer

Q. 10 of Quiz- (Que-ID : 2678)

which blood group is known as universal donor

  • AB
  • 0
  • A
  • B

Discuss View Answer

Q. 35 of Quiz- (Que-ID : 606)

Red colour of tomato is caused due to the presence of 

  • Vitamin C
  • Lycopene
  • Chromoplasts
  • Leucoplasts

Discuss View Answer

Q. 3 of Quiz- (Que-ID : 3396)

The DNA fragments produced by the use of restriction endonucleases can be separated by

  • polymerase chain reaction
  • gel electrophoresis
  • density gradient centrifugation
  • any of the above

Discuss View Answer

Q. 21 of Quiz- (Que-ID : 3014)

Synapsis occurs between

  • A male and female gametes
  • Ribosome and m-RNA
  • Spindle fibres and centromeres
  • Two homologous chromosomes

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Q. 20 of Quiz- (Que-ID : 3013)

Synaptonemal complex dissolves in _____ stage.

  • Zygotene
  • Pachytene
  • Diakinesis
  • Diplotene

Discuss View Answer

Q. 9 of Quiz- (Que-ID : 2827)

In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is

  • water
  • air
  • pollination
  • apomixis

Discuss View Answer

Q. 14 of Quiz- (Que-ID : 3532)

Bluebaby syndrome results from

  • Excess of TDS
  • Excess of DO
  • Excess of chloride
  • Methaemoglobin

Discuss View Answer

Q. 16 of Quiz- (Que-ID : 3484)

Kanha National Park is famous for

  • For Birds
  • For Tendua
  • For Tiger
  • For Crocodile

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3537)

Act formulated in 1996 was

  • Insecticide Act
  • Air (Prevention and Control of Pollution) Act
  • Water (Prevention and control of Pollution) Act
  • Environment protection Act

Discuss View Answer

Q. 40 of Quiz- (Que-ID : 611)

Tulsi plant has medicinal values due to presence of the following 

  • Inorganic acid
  • Organic acid
  • Phenols and Flavonoids
  • None of the above

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Q. 11 of Quiz- (Que-ID : 2779)

In angiosperm, characters of flowers are used in classification because

  • Flowers are attractive
  • Flowers are large
  • Characters of flowers are conservative
  • None of the above

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Q. 16 of Quiz- (Que-ID : 2959)

If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it ?

  • 20%
  • 40%
  • 30%
  • 60%

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Q. 23 of Quiz- (Que-ID : 2816)

In Na-K pump how much ions of Na are transported outwards

  • 2
  • 3
  • 6
  • 5

Discuss View Answer

Q. 23 of Quiz- (Que-ID : 2666)

Pneumotaxic centre is present in which region of brain

  • Medulla
  • Hypothalamus
  • Pons
  • None of the above

Discuss View Answer

Q. 12 of Quiz- (Que-ID : 3030)

Plants grow throughout their life due to

  • presence of meristems
  • presence of vascular cambium
  • presence of xylem and phloem
  • presence of tracheids

Discuss View Answer

Q. 20 of Quiz- (Que-ID : 3413)

Two microbes found tb be very useful in Genetic Engineering are

  • Excherichia coli and Agrobacterium tumefaciens
  • Vibrio cholarae and a tailed bacteriophage
  • Diplococcus sp. and Pseudomonas sp.
  • Crown gall bacterium and Caenorhabdities elegans

Discuss View Answer

Q. 16 of Quiz- (Que-ID : 3509)

One of the ex situ conservation methods for endangered species is

  • Wild life sanctuaries
  • Biosphere reserves
  • Cryopreservation
  • National parks

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Q. 22 of Quiz- (Que-ID : 3365)

Turnip mosaic disease is caused by

  • bacteria
  • viruses
  • nematodes
  • fungi

Discuss View Answer

Q. 16 of Quiz- (Que-ID : 3084)

Kranz anatomy is a feature of

  • C3 plants
  • CAM plants
  • C4 plants
  • All of these

Discuss View Answer

Q. 14 of Quiz- (Que-ID : 3182)

Spot the salivary gland in the following :

  • sublingual
  • adrenal
  • Brunners
  • lacrimal

Discuss View Answer

Q. 6 of Quiz- (Que-ID : 3424)

Transgenic Golden Rice has Highly Nutrient value for:

  • Lysine
  • Methionine
  • Glutanin
  • Vitamin-A

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Q. 11 of Quiz- (Que-ID : 2954)

If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be

  • 5’ – UAC – 3’
  • 5’ – CAU – 3’
  • 5’-AUG – 3’
  • 5’ – GUA – 3’

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Q. 6 of Quiz- (Que-ID : 3149)

Which of the following is not a pyrimidine?

  • Uracil
  • Cytosine
  • Guanine
  • Thymine

Discuss View Answer

Q. 3 of Quiz- (Que-ID : 3046)

The complete oxidation of pyruvate take place in

  • cell cytoplasm
  • inner mitochondrial membrane
  • mitochondrial matrix
  • nucleus

Discuss View Answer

Q. 15 of Quiz- (Que-ID : 2833)

There is no natural death in single celled organisms like Amoeba and bacteria because

  • they cannot reproduce sexually
  • they reproduce be binary fission
  • parental body is distributed among the offspring
  • they are microscopic.

Discuss View Answer

Q. 6 of Quiz- (Que-ID : 3524)

Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with

  • DDT
  • Ammonia
  • CO2
  • Water

Discuss View Answer

Q. 5 of Quiz- (Que-ID : 2823)

A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________gametes.

  • diploid, haploid
  • haploid, diploid
  • diploid, diploid
  • haploid, haploid

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3012)

The stage in which daughter chromosomes move toward the poles of the spindle is

  • Anaphase
  • Metaphase
  • Prophase
  • Telophase

Discuss View Answer

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