CELL DIVISION AND CELL CYCLE
1) The name of terminal parts of chromosome is
a) centromere b) telomere c) nucleolar organiser d) satellite b
2) Select the correct pair in case of human:
a) Normal pattern of the chromosome of ovum --22A+ XX
b) Normal pattern chromosome of ovum --22A+ Y
c) Normal pattern of chromosome of ovum --22A+ X
d) Normal pattern of chromosome of ovum --22A+ XY c
3) Select the correct pair-
a) Telophase -- Movement of daughter chromosomes towards piles
b) Telophase --Disappearance of Nuclear Membrane and Nucleolus
c) Telophase -- Formation of spindle fibre
d) Telophase -- Reappearance of Nuclear Membrane and Nucleolus d
4) Determined from the answers given below in which phases of Karyokinesis during mitotic cell division following two incidents happen --
A) daughter chromosomes tend to move apart from each other towards their own poles
B) nuclear membrane and nucleolus disappear
a) A. Prophase B. Anaphase
b) A. Anaphase B. Prophase
c) A. Telophase B. Metaphase
d) A. Metaphase B. Telophase b
5) Determine the number of DNA molecules that get coiled to form each chromosome in a newly formed daughter cell produced by mitotic cell division in human body--
a) 46 b) 1 c) 23 d) numerous b
6) identify the correct feature of Amitosis cell division
a) occurs in germs mother cell of sexually reproducing organism
b) it is called indirect cell division
c) chromosome and spindle fibre are formed
d) chromosomes and spinal fibre are not formed d
7) In which stage of mitosis cell division, the nuclear membrane and nucleolus are seen to disappear ?
a) Anaphase b) prophase c) metaphase d) telophase b
8) Which of the following is not structural component of DNA ?
a) deoxyribose sugar
b) Uracil base
c) Thymine base
d) phosphoric Acid b
9) you have observed the separation of two sister chromatids at one stage of mitotic cell division. The stage is
a) Prophase b) telophase c) anaphase d) metaphase c
10) The components of genes are
a) sugar+ nitrogenous base + H₂SO₄
b) protein+ nitrogenous base+ H₃PO₄
c) Sugar+ phosphate base+ H₂CO₃
d) Sugar+ Nitrogenous base + H₃PO₄ d
11) The movement of chromatid towards the pole is the characteristic of
a) anaphase b) prophase c) metaphase d) telophase a
12) The telomeric part of chromosome is
a) satellite b) centromere c) NOR d) telomere a
13) Mitosis is a
a) reduction division
b) first redectional and then equal division
c) first equal and then reductional division
d) equal division d
14) The connection of Kinetochore of chromosome with spindris fibre takes place during
a) metaphase b) anaphase c) prophase d) telophase. b
15) What kind of cells will be formed after meiotic cell division of a diploid cell and in what number ?
a) 2 diploid cells
b) 4 haploid cells
c) 4 diploid cells
d) 2 diploid cells and two haploid cells. b
16) Which of the following is the characteristic of interphase ?
a) Movement of chromatid towards the pole
b) The arrangement of chromosomes along the equatorial plate
c) duplication of DNA
d) formation of spindle fibre c
17) Which of the following acids is present in DNA ?
a) carbonic acid b) acetic Acid c) pyruvic acid d) phosphoric acid
18) The duplication of DNA takes place in
a) M phase b) G₁ phase c) S phase d) G₂ phase c
19) The process of formation of bivalent of homologous chromosome is
a) synapse b) synapsis c) crossing over d) metakinesis b
20) Which of the following is not the nitrogen base of RNA ?
a) ribose b) Uracil c) adenine d) Thymine. d
21) Which of the following gets attached to DNA to form euchromatin?
a) neutralized histone protein
b) acidic non-histone protein
c) basic histone protein
d) basic non-histone protein c
22) Which of the following is the characteristic of mitotic cell division ?
a) 2n ---> 2n --> 2n
b) 2n ---> n --> 2n
c) 2n ---> 4n --> 4n
d) 2n ---> n --> n a
23) Which of the following is correct ?
a) G + S= interphase
b) S+ G₂ = interphase
c) G₁+ G₂ = interphase
d) G₁+ S+ G₂ = interphase. d
24) Meiotic cell division does not takes place in
a) Spore mother cell
b) Gamete mother cell
c) Embryonal axis
d) Zygote d
25) Which of the following is not the character of Euchromatin?
a) in non-divisional phase it takes light stain and in divisional phase it takes deep stain
b) the inactive part of chromatin
c) the active part of chromatin
d) it takes part in protein synthesis through RNA organization a
26) the chromosome number in gamete is
a) 2n b) 3n c) n d) 4n. c
27) in a Cell 25 centromere are present, then what will be the chromosome number ?
a) 10 b) 50 c) 25 d) 100 c
28) Which of the following does not take place in telophase
a) the reappearance of nuclear membrane from chromatid
b) Reappearance of nuclear membrane and nucleolus
c) Disappearance of spindle fibre
d) The movement of Centrioles towards the pole d
29) Which of the following is not correct about cytokinesis in animal cell ?
a) cell plate formation takes place
b) the daughter cells go away from each other
c) there is no rule of Golgi bodies
d) cleavage formation takes place a
30) Which of the following is not the character of sex chromosome ?
a) it is 2 in number in case of human beings
b) it determine sex in human beings
c) in determines physical features in human beings
d) it is XX in case of women and XY in case of man c
31) The third phase of Karyokinesis is
a) metaphase b) anaphase c) prophase d) telophase a
32) The number of phases of development in human beings is
a) 4 b) 3 c) 5 d) 2 c
33) Which of the following helps to organise spindlr formation ?
a) centriole b) nucleus c) ribosome d) mitochondria a
34) you have not observed the formation of any spindle fibre during the division of a cell. This type of division is called
a) Amitosis b) first meiotic division c) second meiotic division d) mitosis a
35) Which of the following is not a Pyrimidine ?
a) Guanine b) Uracil c) Thymine d) Cytosine. b
36) What is the number of autosomes in human somatic cell ?
a) 44 b) 46 c) 23 d) 22 a
37) In a DNA molecule the complementary base pair of Guanine is
a) adenine b) cytosoc) Thymine d) Uracil. a
38) Amitosis is found in
a) Amoeba b) RBC c) plant cell d) reproductive mother cell a
39) Which of the following is the sugar of DNA ?
a) glucose b) cellulose c) deoxyribose d) ribose c
40) Which of the following is not the character of meiosis ?
a) takes place in reproductive cells
b) the reproductional division of chromosome takes place
c) 2 cells are produced
d) 2 cells are produced
41) Which of the following is the characteristic of of metaphase ?
a) dehydration
b) disappearance of nuclear membrane and nucleolus
c) arrangement of chromosome in equatorial plate
d) Arrangement of chromosome in equatorial plate.
PERIODIC TABLE
A) Choose the correct Option
1) Number of groups in the long periodic table is
a) 9 b) 13 c) 18 d) 19
2) thre order of oxidizing property of Cl(17), I(53), F(9), Br(35) belonging to group 17 of long periodic table is
a) F< Cl< Br< I
b) Cl > I >F > Br
c) Cl > F > Br > I
d) F>Cl >Br >I.
3) Which of the following is not periodic property of elements ?
a) density b) melting point c) boiling point d) radioactivity
4) To which group of the long periodic table do the halogen elements belong ?
a) group 1 b) group 16 c) group 17 d) group 2
5) Which of the following has the highest atomic radius ?
a) K b) H c) Li d) Na
6) Which group's elements of Mendeleev's periodic table are most electropositive ?
a) VII v) I c) 0 d) III.
7) Which one of the following is not a reason for keeping hydrogen in Group I A?
a) hydrogen is electropositive
b) valency of hydrogen is 1
c) hydrogen is a non metallic element
d) hydrogen is a non metallic element.
8) A strong oxidizing element present in the second period of periodic table is
a) F b) Cl c) Br d) O
9) In a group of periodic table, elements are of____physical and chemical properties.
a) different b) same c) both a and b d) none
10) A hydrogen atom may transform to a negative hydride ion by capturing one--
a) electron b) proton c) neutron d) photon
11) Who established the law stating 'Chemical properties of an element depend on the atomic number of the element and not on the atomic mass ?
a) Lothar Meter b) Mosley c) Mendeleev d) Newland
12) Which group of Mendeleev's periodic table contains alkali metals ?
a) I b) II c) III d) IV.
13) An element can be placed in group I -A along alkali metal with alkali metals and also in group VII -B along with halogen and is also called as ' Rogue element '. The name of the element is
a) hydrogen b) fluorine c) chlorine d) bromine
14) Which group's element of Mendeleev's periodic table are called bridge elements?
a) I b) II c) III d) 0
15) An element present in 3rd period and in group -13 is
a) liquid and metallic
b) a good conductor
c) solid and non metallic
d) solid and neutral
16) Which one of the following processes the highest density ?
a) Osmium b) Mercury c) Tungsten d) Helium
17) A pair of alkaline earth metal is
a) Sodium and potassium
b) caesium and Francium
c) lithium and radium
d) calcium and strontium.
18) In a period of periodic table, elements are in ascending order of
a) atomic number
b) atomic mass
c) atomic weight
d) mass number
19) Which one of the following insert gases is radioactive?
a) krypton b) argon c) radon d) xenon
20) Radioactive element among halogens is
a) chlorine b) astatin c) flulorine d) iodine
21) Which pair of elements among the following belong to the same period?
a) Na, Cl b) Na, Ca c) Na, Cl d) Br, Cl
B) One word Answer
1) Arrange F, I, Br, Cl in decreasing order of electronegativity.
2) In which group of long periodic table, elements of all 3 physical state gaseous, liquid and solid are present ?
3) To which group of long periodic table do the alkali metals belong ?
4) What type of chemical bond is present in CaO?
5) Which element bears diagonal relationship with metal Be?
6) State one limitation of Deboeriner's law of Triads.
7) Name the noble gas having the duplet arrangement of the electrons.
8) What is the number of electron shells in elements of period of 3?
9) Arrange S, P, Cl and Ar in order of increasing non metallic characters.
10) Which one among Li, Na and K has the least number of electron shells ?
11) Name the elements from the elements C, O, N, F having the maximum nuclear charge.
12) Name the last three elements of period two of the periodic table in increasing order of their atomic number.
13) Name an element whose electron affinity is zero.
14) Name the halogen whose electronic configuration is 2, 7.
15) Name an element of group I A other than Sodium.
16) Name an element of group VII B which is solid at room temperature.
17) Arrange Cl, Mg, P, Na in decreasing order of atomic size.
18) Define periodic properties.
19) Give two examples of Periodic Properties.
20) Arrange the elements Na, Al, Mg and S in increasing order of electropositivity.
21) State the position of magnesium.
22) After how many elements are the properties repeated in the cases of the second and the third periods ?
23) Name a light metal and a heavy metal.
24) Name two transition elements.
25) Name two Radioactive elements.
26) Name two representative elements.
27) When did Deboeriner give his law of Triads.
28) Who gave the law of octaves.
29) Mention the use of transition elements Tantalum(Ta).
30) Arrange I, Cl, Br in increasing order of their electronegativity.
31) Which elements of the periodic table are called representative elements ?
32) Between K and Ca atom -- which one is larger in size?
33) What name was given to Eka-silicon when the new element was discovered?
34) Name two elements in which both the metallic and non metallic properties are observed.
35) Name the alkali metals and the halogen in period 2 and 3.
36) How many groups and periods are there in the modern version of Mendeleev's periodic table?
37) Define coinage metal.
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