BOTNY MCQs for new

 

BOTNY MCQs for new

A nucleoside is ______________?

1. purine/pyramidine + phosphate
2. purine/pyramidine + sugar
3. Pyramidine + purine + phosphate
4. Purine + sugar + phosphate
5. None of these

Feather stigma is existing in which of the following?

1. Pea
2. Hibiscus
3. Wheat
4. Poppy

In development of microgametophyte regarding to angiosperms  each microspore mother cell experiences__________?

1. Mitosis to produce 4 microspores
2. Two successive mitosis to form 4 microspores
3. Meiosis to produce 4 haploid microspores
4. None of these

 

Formation of diploid embryosac from diploid vegetative structure, e.g., nucellus or integument etc., without meiosis is known as___________

A. Apospory

B. Apomixis

C. Diplospory

D. Adventives polyembryony

C. Anaphase
D. Telophase

Raphides are the crystals of________?
A. Calcium oxalate
B. Calcium
C. Calcium phosphate
D. Calcium carbonate

The shade of a tree is cooler than the shade of a roof due to_______ ?
A. Respiration
B. Photosynthesis
C. Transpiration
D. Guttation

Which of the following shows heterothallism?
A. Rhizopus
B. Cycas
C. Bacterium
D. Ricinus

Casparian strips are found in______.
A. Periderm
B. Epidermis
C. Endodermis
D. Hypodermis

The process through which the amount of DNA, RNA and protein can be known at a time is called___________?
A. Autoradiography
B. Tissue culture
C. Cellular fractioning
D. Phase contrast microscopy

The formation of multivalents at meiosis in diploid organism is due to which of the following?
A. Monosomy
B. Delection
C. Inversion
D. Reciprocal translocation

The trees occurring in two stories is the characteristic feature of ________ from the following?
A. Temperate deciduous forest
B. Tropical savannah
C. Grassland
D. Coniferous forest

A mature ligule, having prominent basal portion, is known as ________?
A. Glossopodium
B. Rhizhore
C. Trichome
D. None of these

Hormogonia are vegetative reproductive structure of__________?
A. Spirogyra
B. Ulothrix
C. Oscillatoria
D. Yeast

Which division of fungi includes ‘club fungi’ from the following?
A. Zygomycota
B. Ascomycota
C. Deuteromycota
D. Basidiomycota

The hypogeal germination is found in which of the following?
A. Bean
B. Maize
C. Rhizophora
D. Cucurbita

Which of following matched correctly?
A. Piper—Climbing root
B. Ficus—Climbing root
C. Buttress root—Bombax
D. Vitis—Nodulated root

Select the correct statement:
A. C4 pathway for. CO2 fixation were discovered by Hatch and Slack
B. CO2 is essential for photosynthesis
C. Addition of sodium carbonate in water retards photosynthetic rate in vallisneria
D. Phloem is the principal pathway for translocation of solutes

Select the correc statement:
A. Lenticel is the exit route for transpiration
B. The action spectra of transpiration is blue and red
C. Transpiration helps the plant to remain cool
D. Transpiration can be measured by photometer

The seeds which have separate endosperm:
A. Maize
B. Onion
C. Rice
D. Bean

Which of the following statement is correct?
A. The causal organism for foolish seedling disease is the source of gibberellin
B. Abscisic acid is a growth promoter
C. The ratio of auxin : cytokinin control cell differentiation
D. Bolting of cabbage can be induced by treatment with IAA

Principal source of antibiotic is/are ________?
A. Streptomyces
B. Micromonospora
C. Rhizopus
D. Nocardia

With reference to plant tissue culture select the matching pair__________?
A. Sterile triploid—banana and seedless fruit
B. Somaclonal variations—differences appearing
C. Embryoids—non-zygatic embryo produced from somatic cells
D. Pulses—belong to cruciferae

Opium alkaloids are______?
A. Codeine
B. Diethyllysergic acid
C. Morphine
D. Saffron

In the bacteria_____?
A. Mesosome is present
B. Nucleoid represents the genome
C. Ribosomes are found in cytoplasm
D. Histone proteins complexed with DNA

Consider the following statements:
A. Cucurbits are monoecious plant
B. In mango, neuter, male and female and female flowers occur together
C. Legumenous plants how unisexuality
D. Oblique septa is found in Rosaceae

Consider the following statement:
A. In plant cells, cytokinesis start with the formation of the phragmoplast
B. Phragmoplast comprises intrazonal microtubules and Golgi vesicles
C. Primary cell wall is produced by microtubules
D. Phragmoplast is formed by nucleus

Consider the following statements:
The genetic code said to be degenerate and universal which means that____________.
A. Amino afids may have more than one codon
B. All amino acids have mo than one codon
C. Codons are common for higher and lower organism
D. Codons are not found in bacteria

Which of the following pairs are correctly matched?
A. 700 nm—Photosystem-I
B. 650 nm—Photosystem-II
C. 690 nm—Photosystem-II
D. 620 nm—Phycocyanin

Consider the following statements:
A. Copper is present in cytochrome oxidane
B. Pantothenic acid is precursor of co-enzyme-A
C. Thiamine prohosphate is the prosthetic group in decarboxylases
D. Zinc is present in RNA and DNA polymerases

Which of the following pairs are correctly matched?
A. Fertile spike —Ophioglossum
B. Sporangiophore—Equisetum
C. Synangium—Psilotum
D. Apophysis—Spirogyra

Consider the following statements: Marchantia polymorpha_________?
A. Is dioecious
B. Possesses antheridiophores and archegoniophores
C. Lacks foot and seta in its sporophyte
D. Is heterosporous

Which of the following are true archaebacteria?
A. Extreme halophiles
B. Extreme thermophyles
C. Methanogens
D. Presence of peptidoglycan cell wall

Which of the following are endangered plants?
A. Saintpaulia ionantha
B. Ceratozamia hildae
C. Punica granatum
D. Senecio hadrasomum

Consider the following statement:
The ex situ conservation of genetic resources can be done through________?
A. Tissue culture practices
B. Maintenance of sanctuaries
C. The establishment of germplasm banks
D. The establishment of national parks

Consider the following statements associated with the germination of an angiospermous seed:
A. As the seed gets hydrated and germinates, enzymatic activity is increased
B. The respiration rate of the germinating seed increases along with the increased enzymatic activity
C. The increase in the respiratory rate continues till senescence
D. Rate of enzymatic activity decreases

Consider the following statements?
A. The seed of pea is exalbuminous
B. The fruit of peach is drupe
C. The seed of tomato is albuminous
D. The fruit of coconut is berry

Consider the following statements?
A. Cutin is a fatty acid polymer
B. Starch is a fatty acid polymer
C. Sucrose is monosaccharide
D. Maltose is polymer of fructose

Calvin cycle is__________?
A. C3 cycle
B. Reductive pentose-phosphate cycle
C. Common in cereals uncommon in cereals
D. Uncommon in cereals

The empirical formula for chlorophyII-b is_______ ?
A. C54H70O6 N4 Mg
B. C55H70O6 N4 Mg
C. C55H22 O5N4 Mg
D. C45H72O5 N4 Mg

193.Which of the following discovered nucleus?
A. Albert
B. Newton
C. Robert Brown
D. Robert Hooke

What is the name of the botanical name of paddy?
A. solanum nigrum
B. eleusine coracana
C. oryza sativa
D. none of these

.Which of the following plant was used by Mendel in his early experiment?
A. orange
B. pea plant
C. banana
D. brinjal

More rate of photosynthesis occurs in_________ of the following?
A. red light
B. white light
C. blue light
D. yellow light

Plants produces energy during _______ process?
A. respiration
B. photosynthesis
C. absorption
D. transpiration

What is the type of Tomato fruit?
A. pome
B. berry
C. drupe
D. none of the above

For which one among the following diseases no vaccine is yet available?
A. measles
B. mumps
C. tetanus
D. malaria

Which of the following is least infectious?
A. leprosy
B. hepatitis
C. tuberculosis
D. conjunctivitis

The compound used in anti malarial drug is_______ of the following?
A. aspirin
B. chloroquin
C. neoprene
D. isoprene

Which one of the following diseases is inheritable?
A. hepatitis
B. colour blindness
C. leukaemia
D. malignancy

Food wrapped in newspaper is likely to get contaminated with _______?
A. iron
B. lead
C. aluminium
D. magnesium

The blue green algae are ______ of the following?
A. photoautotrophs
B. chemoautotrophs
C. photoheterotrophs
D. chemoheterotrophs

.In which one of the following animals is skin a respiratory organ?
A. frog
B. shark
C. whale
D. cockroach

A dye is prepared from_______?
A. sida
B. tridax
C. tephrosia
D. indigofera

Which of the following disease is caused by the fungi?
A. Polio
B. Malaria
C. Dermatitis
D. Cholera

The richest source of vitamin D is_____ from the following?
A. milk
B. cheese
C. cod liver oil
D. spinach

Oncogene is responsible for ______ of the following?
A. cancer
B. aids
C. malaria
D. typhoid

Which one of the following is not a mosquito-borne disease?
A. Malaria
B. Filariasis
C. Dengue fever
D. sleeping sickness

Which among the following is not a true fruit?
A. date
B. plum
C. apple
D. grape

Ammonification take place in______________?
A. forest
B. sea
C. leaves
D. ditch