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The number of chromosome and the amount of DNA are changed in
General Science Biology Botany Class 11th NEET UG NEET UG Preparation
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
Ans → (b)Anaphase and S phase
Explanation → Anaphase and S phase
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 : 3116)
The enzyme involved in biological nitrogen fixation are
- Carboxylase
- Oxygenase
- Dehydrogenase
- Nitrogenase
Q. 2 of Quiz- (Que-ID : 3220)
Artabotrys is a hook climber in which the hooks are modified
- inflorescence axis
- petiole
- roots
- stipules
Q. 12 of Quiz- (Que-ID : 2855)
Indentify the wrong statement regarding post-fertilisation development
- The ovary wall develops into pericarp.
- The outer integument of ovule develops into tegmen
- The fusion nucleus (triple nucleus) develops into endosperm.
- The ovule develops into seed.
Q. 11 of Quiz- (Que-ID : 3004)
Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
Q. 17 of Quiz- (Que-ID : 2960)
If the sequence of bases in one strand of DNA is ATGCATGCA, what would be the sequence of bases on complementary strand ?
- ATGCATGCA
- AUGCAUGCA
- TACTACGT
- UACGUACGU
Q. 18 of Quiz- (Que-ID : 3211)
Vessels differ from tracheids
- in being living
- in being derived from a single cell
- in that they consist of vertical row of cells with cross walls dissolved
- in coducting water and minerals
Q. 7 of Quiz- (Que-ID : 2925)
Which of the following is incorrect regarding ZW – ZZ type of sex determination ?
- It occurs in birds and some reptiles.
- Females are homogametic and males are heterogametic.
- 1:1 sex ratio is produced in the offsprings
- All of these
Q. 14 of Quiz- (Que-ID : 3182)
Spot the salivary gland in the following :
- sublingual
- adrenal
- Brunners
- lacrimal
Q. 3 of Quiz- (Que-ID : 3346)
Germplasm collection is the collection of
- germ cells
- semens
- plants/seeds with all the diverse alleles for all genes
- egg cells
Q. 4 of Quiz- (Que-ID : 2617)
The bile duct and pancreatic duct open together into which region of intestine
- Jejunum
- Ileum
- Duodenum
- Cardiac
Q. 12 of Quiz- (Que-ID : 3938)
A protein having both structural and enzymatic traits is
- Collagen
- Trypsin
- Myosin
- Actin
Q. 9 of Quiz- (Que-ID : 2952)
If the sequence of initrogen bases of the coding strand of DNA in a transcription unit is: 5’ – ATGAATG – 3’, the sequence of bases in its RNA transcript would be
- 5’ – AUG A AUG – 3’
- 5’ – UACUU AC – 3’
- 5’ – CAUUCAU – 3’
- 5’ – GUAAGUA – 3’.
Q. 9 of Quiz- (Que-ID : 2622)
Which enzyme is not present in pancreatic juice
- Lipases
- Amylase
- Nucleases
- Nucleosides
Q. 2 of Quiz- (Que-ID : 2820)
Which of the following options shows bisexual animals only?
- Amoeba, sponge, leech
- Sponge, cockroach, Amoeba
- Earthworm, sponge, leech
- Tapeworm, earthworm, honeybee
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 : 3414)
DNA obtained for DNA finger printing:
- W.B.C
- Hair root cells
- Body fluids
- None of these
Q. 8 of Quiz- (Que-ID : 2621)
Which enzyme converts polysaccharides into disaccharides
- Amylases
- Lipases
- Salivary amylase
- None of the above
Q. 11 of Quiz- (Que-ID : 2829)
The wall of the ovary forms
- pericarp
- fruit wall
- fruit
- both (a) and (b).
Q. 9 of Quiz- (Que-ID : 3352)
The breeding carried out between animals of different breeds is called
- out-crossing
- cross-breeding
- inbreeding
- both (a) and (b)
Q. 36 of Quiz- (Que-ID : 607)
Which acid is produced in human stomach for digestion purpose ?
- Sulphuric Acid
- Hydrochloric Acid
- Acetic Acid
- Nitric Acid
Q. 12 of Quiz- (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- (Que-ID : 3231)
certain plants called as runners can be easily propagated. This is due to the fact
- they are numerous in numbers
- they store the ready food
- they lie horizontally on the soil
- they can produce adventitious roots quite readily at the nodes
Q. 22 of Quiz- (Que-ID : 2890)
Which one of the following groups includes sexually transmitted diseases caused by bacteria only ?
- Syphilis, gonorrhoea, chancroid
- Syphilis, chlamydiasis, chancroid
- Syphilis, gonorrhoea, scabies
- Syphilis, scabies, pediculosis
Q. 2 of Quiz- (Que-ID : 3495)
Lion-tailed Macaque is found in:
- Western Ghats
- Caucasus
- Eastern Ghats
- Western Himalaya
Q. 4 of Quiz- (Que-ID : 3930)
Enzymes increase the rate of reaction by
- lowering activation energy
- increasing activation energy
- increasing temperature and pH
- decreasing temperature and pH
Q. 34 of Quiz- (Que-ID : 605)
which of the following statements is not a micronutrient in plants ?
- Iron
- Manganese
- Copper
- Magnesium
Q. 22 of Quiz- (Que-ID : 3290)
An evolutionary characteristic is found in selaginella:
- Presence of ligule
- Heterophilly habits
- Sporangia present in cone
- Heterospory
Q. 7 of Quiz- (Que-ID : 3175)
The vascular tissue of blood is made up of
- RBC
- plasma
- platelets
- all of the above
Q. 17 of Quiz- (Que-ID : 2910)
spot the odd one out from the following structures with reference to the male reproductive system
- Rate testis
- Epididymis
- Vasa efferentia
- Isthmus
Q. 20 of Quiz- (Que-ID : 3288)
Pinus differs from mango in having
- Tree habit
- Green leaves
- Ovules not enclosed in ovary
- Wood
Q. 14 of Quiz- (Que-ID : 3032)
The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Q. 12 of Quiz- (Que-ID : 3455)
A stage of suspended development is called
- Diapause
- Suspend
- Migrate
- Aestivation
Q. 8 of Quiz- (Que-ID : 2851)
The outermost and innermost wall layers of microsporangium in an anther are respectively
- endothecium and tapetum
- epidermis and endodermis
- epidermis and middle layer
- epidermis and tapetum.
Q. 4 of Quiz- (Que-ID : 3272)
The seedless vascular plants whose sporophytes are larger than their small and independent gametophytes are
- Pteridophytes
- Angiosperms
- Gymnosperms
- None of these
Q. 13 of Quiz- (Que-ID : 2656)
Pressure contributed by an individual gas in a mixture of gas is known as
- Partial pressure
- Diffusion pressure
- Osmotic pressure
- None of the above
Q. 11 of Quiz- (Que-ID : 3304)
Which one of the following scientist’s name is correctly matched with the theory put forth by him ?
- de Vries – Theory of natural selection
- Darwin – Theory of pangenesis
- Weismann – Theory of continuity of germplasm
- Pasteur – Theory of inheritance of acquired charcters
Q. 16 of Quiz- (Que-ID : 3384)
The masses of bacteria held together by slime and fungal filaments to form mesh-like structures are called as
- primary sludge
- floes
- activated sludge
- anaerobic sludge
Q. 10 of Quiz- (Que-ID : 3528)
Increased skin cancer and high mutation rate are due to
- Acid Rain
- Ozone Depletion
- CO2 Pollution
- CO Pollution
Q. 15 of Quiz- (Que-ID : 2958)
In DNA strand, the nucleotides are linked together by
- glycosidic bonds
- phosphodiester bonds
- peptide bonds
- hydrogen bonds
Q. 1 of Quiz- (Que-ID : 3194)
Quiescent centre is present in the
- apical meristem
- shoot meristem
- lateral meristem
- root meristem
Q. 4 of Quiz- (Que-ID : 2872)
Hepatitis B is transmitted through
- blood transfusion
- intimate physical contact
- sexual contact
- all of these
Q. 13 of Quiz- (Que-ID : 3231)
certain plants called as runners can be easily propagated. This is due to the fact
- they are numerous in numbers
- they store the ready food
- they lie horizontally on the soil
- they can produce adventitious roots quite readily at the nodes
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
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. 12 of Quiz- (Que-ID : 3480)
That animal who can bear one third loss of water of one third body weight is
- Necturus
- Camel
- Wall Lizzard
- Kyton
Q. 20 of Quiz- (Que-ID : 3188)
Which is not a part of reproductive system of female cockroach?
- Phallic gland
- Vestibulum
- Gonapophyses
- Collaterial glands
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