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During which stage the chromosomes first become visible
General Science Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 6 of Quiz-1440 (Que-ID : 2999)
During which stage the chromosomes first become visible
- Anaphase
- Metaphase
- Prophase
- Telophase
Ans → (c)Prophase
Explanation →
This question is taken from this post → Cell Division and Cell Cycle (Class 11th Biology) Revision Test | MCQs For NEET - attemp/practice
More MCQs in - Cell Division and Cell Cycle (Class 11th Biology) Revision Test | MCQs For NEET
Q. 1 of Quiz-1440 (Que-ID : 2994)
Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
Q. 2 of Quiz-1440 (Que-ID : 2995)
Cell plate grows from
- walls to the centre
- centre to the walls
- in patches
- simultaneously
Q. 3 of Quiz-1440 (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. 4 of Quiz-1440 (Que-ID : 2997)
If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into
- Prophase
- Anaphase
- Telophase
- Metaphase
Q. 5 of Quiz-1440 (Que-ID : 2998)
Karyokinesis is the term used for
- division of cytoplasm
- division of nucleoplasm
- division of nucleus
- separation of daughter chromosomes
Q. 6 of Quiz-1440 (Que-ID : 2999)
During which stage the chromosomes first become visible
- Anaphase
- Metaphase
- Prophase
- Telophase
Q. 7 of Quiz-1440 (Que-ID : 3000)
In mitosis, nuclear envelope and nucleolus disappear during
- Metaphase
- Interphase
- Prophase
- Telophase
Q. 8 of Quiz-1440 (Que-ID : 3001)
Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
- II, I, IV, III
- III, II, I, IV
- IV, III, II, I
- I, IV, III, II
Q. 9 of Quiz-1440 (Que-ID : 3002)
The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
- splitting of the centromeres
- splitting of the chromatids
- replication of the genetic material
- condensation of the chromatin
Q. 10 of Quiz-1440 (Que-ID : 3003)
what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
Q. 11 of Quiz-1440 (Que-ID : 3004)
Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
Q. 12 of Quiz-1440 (Que-ID : 3005)
Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
- C, B, A, D, E
- C, A, B, E, D
- C, B, A, E, D
- D, B, C, E, A
Q. 13 of Quiz-1440 (Que-ID : 3006)
How many chromosomes are there in onion root tip cell?
- 6
- 16
- 26
- 36
Q. 14 of Quiz-1440 (Que-ID : 3007)
Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
Q. 15 of Quiz-1440 (Que-ID : 3008)
Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
Q. 16 of Quiz-1440 (Que-ID : 3009)
Centromere is a constituent of
- Ribosome
- ER
- Chromosome
- Mitochondrion
Q. 17 of Quiz-1440 (Que-ID : 3010)
In which phase of cell cycle, proteins are synthesised?
- G0
- G1
- G2
- S
Q. 19 of Quiz-1440 (Que-ID : 3012)
The stage in which daughter chromosomes move toward the poles of the spindle is
- Anaphase
- Metaphase
- Prophase
- Telophase
Q. 20 of Quiz-1440 (Que-ID : 3013)
Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
Q. 21 of Quiz-1440 (Que-ID : 3014)
Synapsis occurs between
- A male and female gametes
- Ribosome and m-RNA
- Spindle fibres and centromeres
- Two homologous chromosomes
Q. 22 of Quiz-1440 (Que-ID : 3015)
Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Q. 23 of Quiz-1440 (Que-ID : 3016)
A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Q. 24 of Quiz-1440 (Que-ID : 3017)
Crossing over results the exchange of genetic material, which occurs between
- Non-sister chromosomes
- Sister chromatids
- Non-homologous chromosome
- Homologous chromosomes
Q. 25 of Quiz-1440 (Que-ID : 3018)
The number of chromosome and the amount of DNA are changed in
- Metaphase and M phase
- Anaphase and S phase
- Interphase and S phase
- None of these
More MCQs In - General Science Biology Botany Class 11th NEET UG NEET UG Preparation
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. 4 of Quiz- (Que-ID : 2822)
Meiosis does not occur in
- asexually reproducing diploid individuals
- sexually reproducing haploid individuals
- sexually reproducing diploid individuals
- all of these.
Q. 7 of Quiz- (Que-ID : 3075)
Oxidative phosphorylation refers to
- Anaerobic production of ATP
- The citric acid cycle production of ATP
- Production of ATP by chemiosmosis
- Alcoholic fermentation
Q. 9 of Quiz- (Que-ID : 3152)
Which of the following influence feedback inhibition of enzyme?
- End product
- External factors
- Enzyme
- Substrate
Q. 13 of Quiz- (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
Q. 21 of Quiz- (Que-ID : 3089)
During photochemical reaction of photosynthesis–
- liberation of O2 takes place
- Formation of ATP and NADPH2 take place
- Liberation of O2, formation of ATP, and NADPH2 takes place
- Assimilation of CO2 takes place
Q. 11 of Quiz- (Que-ID : 3429)
Which Vitamin has been transferred to golden rice?
- Vit-B12
- Vit-A
- Vit-D
- Vit-C
Q. 3 of Quiz- (Que-ID : 3071)
The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Q. 18 of Quiz- (Que-ID : 3361)
In livestock breeding experiments, which of the following stages is transferred to surrogate mothers ?
- Unfertilised eggs
- Fertilised eggs
- 8 to 32 celled embryo
- Frozen semen
Q. 9 of Quiz- (Que-ID : 2652)
On an average healthy human breathes how many times per minute
- 12-16
- 15-16
- 20-25
- 72
Q. 3 of Quiz- (Que-ID : 3371)
Organic farming does not include
- green manures
- chemical fertilisers
- farmyard manures
- compost
Q. 11 of Quiz- (Que-ID : 2829)
The wall of the ovary forms
- pericarp
- fruit wall
- fruit
- both (a) and (b).
Q. 8 of Quiz- (Que-ID : 3126)
Diffusion rate is affected by
- temperature
- membrane permeability
- gradient of concentration
- all of these
Q. 13 of Quiz- (Que-ID : 3131)
If pressure greater than atmospheric pressure is applied to pure water, the water potential
- increases
- decreases
- remains same
- atmospheric pressure does not affect water potential
Q. 11 of Quiz- (Que-ID : 2829)
The wall of the ovary forms
- pericarp
- fruit wall
- fruit
- both (a) and (b).
Q. 12 of Quiz- (Que-ID : 2680)
Which enzyme converts prothrombin into thrombin
- Thrombin
- Thrombokinase
- Pepcase
- Ligase
Q. 20 of Quiz- (Que-ID : 2663)
RBC contains very high quantity of which enzyme
- Carbonic anhydrase
- Lysosome
- Ligase
- None of the above
Q. 24 of Quiz- (Que-ID : 3542)
The petrol used in engines filled with catalytic converter should be
- Simple petrol
- Any type of petrol
- Unleaded petrol
- None of the above
Q. 10 of Quiz- (Que-ID : 3078)
In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be
- ratio of oxygen evolved to carbon dioxide absorbed
- increase in fresh weight
- increase in dry weight
- increase in carbohydrate
Q. 23 of Quiz- (Que-ID : 3191)
The epithelium found in the lining layer of stomach and intestine is
- Squamous epithelium
- Cuboidal epithelium
- Columnar epithelium
- Ciliated columnar epithelium
Q. 19 of Quiz- (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
Q. 5 of Quiz- (Que-ID : 3198)
A.T.S. of a young dicot root can be distinguished from that of a young dicot stem by the presence of
- radial arrangement of xylem and phloem
- collateral arrangement of xylem and phloem
- interfascicular cambium
- intrafascicular cambium
Q. 21 of Quiz- (Que-ID : 3139)
Root hairs absorb water from soil with the help of
- Root pressure
- osmotic pressure
- Suction pressure
- Turger pressure
Q. 4 of Quiz- (Que-ID : 3447)
The number of birth during a given period in the population that are added to the initial density is referred to
- Natality
- Mortality
- Sex-ratio
- None of the above
Q. 2 of Quiz- (Que-ID : 2895)
After ovulation Graafian follicle regreses into
- corpus atresia
- corpus callosum
- corpus luteum
- corpus albicans
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
Q. 3 of Quiz- (Que-ID : 3071)
The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Q. 20 of Quiz- (Que-ID : 3338)
During the life cycle of Plasmodium, sexual reproduction takes place in which of the following hosts ?
- Human
- Female Anopheles mosquito
- Male Anopheles mosquito
- Both (a) and (b)
Q. 8 of Quiz- (Que-ID : 2976)
Green glands/ antennal glands are excretory structures of which organism
- Earthworm
- Prawn
- Cockroach
- Planaria
Q. 24 of Quiz- (Que-ID : 3292)
Bioluminescence is a phenomenon associated with
- chrysophyta
- phaeophyta
- pyrrophyta
- chlorophyta
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. 5 of Quiz- (Que-ID : 3398)
The DNA polymerase enzyme used in PCR is obtained from
- Thermus aquaticus
- Escherichia coli
- Agrobacterium tumefaciens
- Salmonella typhimurium
Q. 20 of Quiz- (Que-ID : 3463)
Submerged hydrophytes have disseced leaves for
- Decreasing surface area
- Increasing surface area
- Reducing effect pf water currents
- Increasing number of stomata
Q. 2 of Quiz- (Que-ID : 3395)
In genetic engineering experiments, restriction enzymes are used for
- viral DNA
- bacterial DNA
- eukaryotic DNA
- any type of DNA.
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)
Q. 17 of Quiz- (Que-ID : 3485)
During food chain the maximum energy is stored in
- Producers
- Decomposers
- Herbivoures
- Camivourse
Q. 25 of Quiz- (Que-ID : 3343)
Which of the following diseases is transmitted by the bite of the female mosquito vector ?
- Filariasis
- Amoebiasis
- Typhoid
- Pneumonia
Q. 11 of Quiz- (Que-ID : 3104)
Oxygen scavangers present in root nodules of legumes is
- haemoglobin
- leg haemoglobin
- cyano haemoglobin
- none of these
Q. 7 of Quiz- (Que-ID : 3450)
If one species is harmed whereas the other is unaffected is called
- Commensalism
- Amensalism
- Mutualism
- None of the above
Q. 25 of Quiz- (Que-ID : 3393)
A microbial biocontrol agent that can be used to control butterfly caterpillars is
- Trichoderma polysporum
- Bacillus thuringiensis
- Streptococcus
- mycorrhiza
Q. 19 of Quiz- (Que-ID : 3287)
Which one of the following is a vascular cryptogram?
- Cedrus
- Equisetum
- Ginkgo
- Marchantia
Q. 7 of Quiz- (Que-ID : 2775)
Binomial nomenclature was given by
- Ernst Mayr
- alexander aggisz
- carolus Linnaeus
- None of the above
Q. 10 of Quiz- (Que-ID : 3128)
Which of the following is true about diffusion?
- There is no expenditure of energy
- Molecules move in Brownian motion
- Substances moves from the region of higher concentration to the region of lower concentration.
- Diffusion depends on the type of living system
Q. 19 of Quiz- (Que-ID : 2662)
Every 100ml of deoxy blood delivers approx
- 2ml of co2 to alveoli
- 3 of co2 to alveoli
- 4ml of co2 to alveoli
- 7ml of co2 to alveoli
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