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botany MCQs with Explanations - Chapter-wise Practice Questions
Q. 5 of Quiz- (Que-ID : 3223)
Which one of the following plants dose not have root – pockets
- Pistia
- Lemna
- Ficus
- Eichhornia
Q. 4 of Quiz- (Que-ID : 2847)
Nonessential floral organs in a flower are
- sepals and petals
- anther and ovary
- stigma and filament
- petals only.
Q. 17 of Quiz- (Que-ID : 3035)
Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Q. 10 of Quiz- (Que-ID : 3228)
In which of the following plants stems do not store the food materia
- potato
- ginger
- onion
- colocasia
Q. 18 of Quiz- (Que-ID : 3061)
Respiratory enzymes are located in
- mitochondrial matrix
- Cristae
- perimitochondrial space
- outer membrane
Q. 4 of Quiz- (Que-ID : 2922)
In a monohybrid cross between two heterozygous individuals, percentage of pure homozygous individuals obtained in F1 generation will be
- 25%
- 50%
- 75%
- 100%
Q. 18 of Quiz- (Que-ID : 3511)
First National park developed in India is
- Gir
- Kaziranga
- Jim Corbett
- None of these
Q. 16 of Quiz- (Que-ID : 2934)
The inheritance of flower colour in Antirrhinum (dog flower) is an example of
- incomplete dominance
- co-dominance
- multiple alleles
- linkage
Q. 6 of Quiz- (Que-ID : 3349)
Jaya and Ratna are the semi-dwarf varieties of
- wheat
- rice
- cowpea
- mustard
Q. 1 of Quiz- (Que-ID : 2919)
A recessive allele is expressed in
- heterozygous condition only
- homozygous condition only
- F3 generation
- both homozygous and heterozygous conditions.
Q. 16 of Quiz- (Que-ID : 2859)
Spiny or sticky pollen grains and large, attractively coloured flowers are associated with
- hydrophily
- entomophily
- ornithophily
- anemophily
Q. 20 of Quiz- (Que-ID : 3013)
Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
Q. 20 of Quiz- (Que-ID : 3038)
IAA is naturally occurring plant hormone called
- Gibberlin
- Auxin
- Cytokinin
- Absicic acid
Q. 24 of Quiz- (Que-ID : 3242)
Flowers in which only one set of essential organs is present are said to be
- Polygamous
- Bisexual
- Dioecious
- Unisexual
Q. 21 of Quiz- (Que-ID : 2939)
Law of independent assortment can be explained with the help of
- dihybrid
- test cross
- back cross
- monohybrid cross
Q. 20 of Quiz- (Que-ID : 2938)
How many types of gametes can be produced by a diploid organism who is heterozygous for 4 loci ?
- 4
- 8
- 16
- 32
Q. 3 of Quiz- (Que-ID : 2996)
Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
- C, A, B, D
- C, B, A, D
- C, D, B, A
- A, C, D, B
Q. 23 of Quiz- (Que-ID : 3041)
Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Q. 17 of Quiz- (Que-ID : 2860)
Which of the following is not a water pollinated plant ?
- Zostera
- Vallisneria
- Hydrilla
- Cannabis
Q. 19 of Quiz- (Que-ID : 3212)
Endodermis cells are rich in
- cellulose
- starch grains
- fibers
- resins and wax
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
Q. 13 of Quiz- (Que-ID : 3356)
Artificial insemination involves
- super ovulation
- semen collection
- egg collection
- embryo collection
Q. 21 of Quiz- (Que-ID : 3239)
The aleurone layer in maize grain is especially rich in
- auxins
- proteins
- starch
- lipids
Q. 10 of Quiz- (Que-ID : 3278)
Gymnosperms produce neither flower nor fruit because they do not possess
- Embryo
- Ovary
- Ovule
- Seed
Q. 7 of Quiz- (Que-ID : 3050)
Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
Q. 17 of Quiz- (Que-ID : 3510)
Which of the following is not done in a wild life sanctuary?
- Fauna is conserved
- Flora is conserved
- Soil and flora is utilised
- Hunting is prohibited
Q. 12 of Quiz- (Que-ID : 2930)
Two or more independent genes present on different chromosomes which determine nearly same phenotype are called
- supplementary genes
- complementary genes
- duplicate genes
- none of these
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