Biological Classification MCQ Class 11. We covered all the Biological Classification MCQ Class 11 in this post for free so that you can practice well for the exam.
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MCQ on Biological Classification for NEET Students
What is common between vegetative reproduction and apomixis?
(A) Both are applicable to only dicot plants
(B) Both bypass the flowering phase
(C) Both occur around the year
(D) Both produce progeny identical to the parent
Option d – Both produce progeny identical to the parent
Which of the following statements is NOT correct?
(A) Pollen germination and pollen tube growth regulated by chemicals are components of pollen interacting with those of the pistil.
(B) Some reptiles have also been reported as pollinators in some plant species.
(C) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.
(D) Insects that consume pollen or nectar without bringing about pollination are called pollen/nectar robbers.
Option c – Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.
Two alternative forms of a gene or alleles are located on ………
(A) identical loci of the same chromosome
(B) non-identical loci of the same chromosome
(C) identical loci of homologous chromosomes
(D) non-identical loci of homologous chromosomes
Option c – identical loci of homologous chromosomes
Given below are the steps of the plant breeding program (i iv). Identify the missing step and select the CORRECT option. i. Evaluation and selection of parents. ii. Collection of germplasm. iii. Selection and testing of superior recombinants. iv. Release and commercialization of new varieties.
(A) Cross-pollinating to obtain homozygosity.
(B) Application of fertilizer to obtain disease-free progeny.
(C) Collection and preservation of different progeny.
(D) Cross-hybridization of the selected parents to obtain the new variety of the desired characters.
Option d – Cross-hybridization of the selected parents to obtain the new variety of the desired characters.
A total of 168 pollen grains with 14 chromosomes in each pollen grain are released from a mature microsporangium. Mention the correct ratio of pollen mother cells, generative cells, vegetative cells, and male gametes produced by the microsporangium.
(A) 1 : 1 : 1 : 4
(B) 1 : 2 : 1 : 4
(C) 1 : 4 : 4 : 8
(D) 2 : 1 : 1 : 4
Option c – 1 : 4 : 4 : 8
Different kinds of structures are formed in plants while they follow different pathways in different phases of growth or in response to the environment. What is this ability called?
(A) Hydrophylly
(B) Plasticity
(C) Homophylly
(D) Heterophylly
Option b – Plasticity
Which of the following statements is INCORRECT about the process of sporulation in Amoeba?
(A) During unfavorable conditions, Amoeba forms a three-layered hard covering (cyst) around itself.
(B) The encyst Amoeba divides by multiple fission to produce pseudopodiospores.
(C) The cyst wall of Amoeba bursts to release spores which grow up into many Amoeba.
(D) Sporulation occurs when favorable conditions return.
Option a – During unfavorable conditions, Amoeba forms a three-layered hard covering (cyst) around itself.
A cell at the telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at the telophase stage. There is no formation of the cell plate and thus the cell is containing more chromosomes as compared to other dividing cells. This would result in
(A) Somaclonal variation
(B) Polyteny
(C) Aneuploidy
(D) Polyploidy
Option d – Polyploidy
Ulothrix can be described as an
(A) non-motile colonial alga lacking zoospores.
(B) filamentous alga lacking flagellated reproductive stages.
(C) membranous alga-producing zoospores.
(D) filamentous alga with flagellated reproductive stages.
Option d – filamentous alga with flagellated reproductive stages.
In a longitudinal section of a root, starting from the tip upward, the four zones occur in the following order :
(A) root cap, cell division, cell enlargement, cell maturation
(B) root cap, cell division, cell maturation, cell enlargement
(C) cell division, cell enlargement, cell maturation, root cap
(D) cell division, cell maturation, cell enlargement, root cap
Option a – root cap, cell division, cell enlargement, cell maturation
Keel is characteristic of the flowers of
(A) Gulmohar
(B) Cassia
(C) Calotropis
(D) bean
Option d – bean
Find out the correct statement from the following.
(A) The root system of plants is positively geotropic.
(B) Stilt roots of Rhizophora help the plant to get oxygen for respiration.
(C) The cells found in the region of meristematic activity are thick-walled and without protoplasm.
(D) In most dicotyledonous plants, the radicle elongates to form secondary roots which bear lateral primary roots.
Option a – The root system of plants is positively geotropic
Ground tissue includes
(A) all tissues external to endodermis
(B) all tissues except the epidermis and vascular bundles
(C) epidermis and cortex
(D) all tissues internal to endodermis
Option b – all tissues except the epidermis and vascular bundles
70S type of ribosome shows two units whose sedimentation constants are
(A) 40S and 30S
(B) 50S and 20S
(C) 50S and 30S
(D) 60S and 20S
Option c – 50S and 30S
Spindle fibers unite with which structure of chromosomes?
(A) Chromocentre
(B) Chromomere
(C) Kinetochore
(D) Centriole
Option c – Kinetochore
Protein molecules that form huge pores in the membranes of the plastids, mitochondria, and some bacteria are called
(A) Stomata
(B) Porins
(C) Coherin
(D) Suberins
Option b – Porins
What did Engelmann observe from his prism experiments?
(A) Bacteria could not detect the sites of 0₂ evolution.
(B) Bacteria release excess carbon dioxide in red and blue light.
(C) Bacteria accumulated due to an increase in temperature caused by an increase in oxygen concentration.
(D) Bacteria are accumulated towards red and blue light.
Option d – Bacteria are accumulated towards red and blue light.
In which one of the following processes CO₂ is NOT released?
(A) Aerobic respiration in plants
(B) Aerobic respiration in animals
(C) Alcoholic fermentation
(D) Lactate fermentation
Option d – Lactate fermentation
Regeneration as a method of asexual reproduction is observed in …….. ( Biological Classification MCQ Class 11 )
(A) Ascaris
(B) Planaria
(C) Prawn
(D) Salmonella
Option b – Planaria
Who gave the nomenclature according to which humans are called Homo sapiens?
(A) Darwin
(B) Mendel
(C) Aristotle
(D) Linnaeus
Option d – Linnaeus
Which of the following statement is NOT true for a five-kingdom system of classification?
(A) Unicellular eukaryotes were included in the kingdom Protista.
(B) Fungi were included as a subkingdom of the kingdom Plantae.
(C) All prokaryotes were included in the kingdom Monera.
(D) This system is based on criteria like cell structure, body organization, mode of nutrition, etc.
Option b – Fungi were included as a subkingdom of the kingdom Plantae.
Single-celled eukaryotes are included in :
(A) Protista
(B) Fungi
(C) Archaea
(D) Monera
Option a – Protista
We covered all the biological classification MCQ class 11 above in this post for free so that you can practice well for the exam.
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