16HYD16_Layout 1

16
ôV’≤<äsêu≤<é
34. Identify the two correct statements with reference
to meiosis
I. Bead like structure are absent on chromosomes.
II. Displacement of chiasmata occurs in diakinesis.
III. Separation of two basic sets of chromosomes.
IV. No division of centromere.
The correct statements are
A) III, IV B) II, IV C) II, III
D) I, III
35. Match the following
List-I
List-II
(A) Initiation of spindle fibres
(B) Synthesis of RNA and Protein
(C) Action of endonuclease
(D) Movement of chromatids
towards opposite pole
, 16  2016
(I) Anaphase - I
(II) Zygotene
(III) G1 phase
(IV) Pachytene
(V) Anaphase - II
A) A - I, B - III, C - V, D – IV
B) A - III, B - II, C - I, D - V
C) A - II, B - III, C - IV, D – V
D) A - V, B - III, C - I, D – II
Ribosomal RNA is actively synthesized in..
CYTOLOGY AND
CELL DIVISION
1. Arrange the following events of meiosis
in the correct sequence
I. Terminalization II. Crossing over
III. Synapsis IV. Disjunction of genomes
The correct sequences is
A) II, I, IV, III
B) III, II, I, IV
C) IV, III, II, I
D) I, IV, III, II
2. A bivalent consists of
I. Two chromatids and one centromere
II. Four chromatids and two centromeres
III. Two chromatids and two centromeres
IV. Four chromatids and four centromeres
Select the correct answer from the codes
given below
A) Only I
B) Only II
C) Only III
D) All the above
3. Chromosomes can be counted best at the
stage of
1) Metaphase
2) Late anaphase
3) Telophase
4) Late prophase
Choose the right one from the following
A) Only 1
B) 1 & 2
C) Only 4
D) 3 & 4
4. The stage in which daughter chromosomes
move toward the poles of the spindle is
1) Anaphase
2) Metaphase
3) Prophase
4) Telophase
Choose the right answer
A) Only 1
B) 1 & 2
C) Only 4
D) 3 & 4
5. Chiasmata are first seen in
I. Pachytene
II. Zygotene
III. Leptotene
IV. Diplotene
Choose the correct answer
A) Only I
B) II and III
C) Only IV
D) I, II, III and IV
6. Plasma membrane is made up of
1) Protein, lipid, carbohydrate
2) Lipid, carbohydrate
3) Protein, lipid and glucose
4) Protein and cellulose
Choose the right answer using above options
A) Only 1
B) 1 and 2
C) Only 2
D) 1 and 4
7. Which of the following cellular structures
always disappears during mitosis and
meiosis?
I. Plasma membrane
II. Nucleolus and nuclear envelope
III. Plastids
Choose the correct answer from the above
statements
A) Only I
B) Only II
C) Only III
D) I, II & III
8. The statements are related to Crossing-over
1. Recombination of linked alleles
2. Dominance of alleles
3. Segregation of alleles
4. Linkage between genes
Choose the right answer from the given
statements.
A)Only 1 B) 1 & 2 C) Only 4 D) 3 & 4
9. Cytoplasmic division of a cell is called
1. Cell plate formation
2. Cytokinesis
3. Mitosis
4. Synapsis
Choose the right answer
A) Only 1
B) Only 2
C) 1 and 2
D) 3 and 4
10. DNA replication takes place during
A) S – phase
B) G2 - phase
C) G1 – phase
D) Prophase
11. During mitosis ER and nucleolus begin
to disappear at
I. Early prophase
II. Late prophase
III. Early metaphase IV. Late metaphase
Choose the correct answer
A) Only I
B) Only II
C) Only IV
D) I, II, III & IV
12. Crossing over occurs in
I) Pachytene
II) Zygotene
III) Leptotene
IV) Diplotene
Choose the correct answer
A) Only I
B) II and III
C) Only IV
D) I, II, III & IV
TGT/ PGT/
JL/ DL
SPECIAL
13. During which stage the chromosomes
first become visible ?
A) Anaphase
B) Metaphase
C) Prophase
D) Telophase
14. Exchange of paternal and maternal
chromosome material during cell division is
1) Crossing over
2) Bivalent formation
3) Dyad formation 4) Synapsis
Choose the right answer
A) Only 1
B) 1 and 2
C) 2 and 3
D) 3 and 4
15. Haploid complement of chromosome of
an organism is
I. Genome
II. Phenotype
III. Genotype
IV. Genetic system
Choose the correct answer
A) Only I
B) II and III
C) Only IV
D) I, II, III & IV
16. In mitosis, nuclear envelope and nucleolus
disappear during
A) Metaphase
B) Interphase
C) Prophase
D) Telophase
17. Select the correct statement from the
following regarding cell membrane
A) Lipids are arranged in a bilayer with
polar heads towards the inner part.
B) Fluid mosaic model of cell membrane
was proposed by Singer and Nicolson.
C) Na+ and K+ ions move across cell
membrane by passive transport.
D) Proteins make up 60 to 70% of the cell
membrane
18. What is true about ribosomes?
A) These are found only in eukaryotic cells
B) These are self-splicing introns of
some RNAs.
C) The prokaryotic ribosomes are 80S,
where "S" stands for sedimentation
coefficient
D) These are composed of ribonucleic acid
and proteins
19. Ribosomal RNA is actively synthesized in
A) Nucleoplasm
B) Ribosomes
C) Lysosomes
D) Nucleolus
20. Assertion (A): A cell membrane shows
fluid behaviour.
Reason (R) : A membrane is a mosaic or
composite of diverse lipids and proteins.
A) Both A and R are true and the R is the
correct explanation of the A.
B) Both A and R are true but the R is not
the correct explanation of the A.
C) A is true statement but R is false.
D) Both A and R are false statements
21. A nucleosome is a portion of the chromonema containing
A) Both DNA and histones
B) only histones
C) Both DNA and RNA
D) only DNA
22. What is the common point of similarity
between DNA and RNA?
A) Both are double stranded
B) Both have identical sugar molecules
C) Both have identical pyrimidine bases
D) Both are polymers of nucleotides
23. Cell wall consists of
A) Lignin, hemi cellulose, pectin and lipid
B) Lignin, hemi cellulose, pectin and cellulose
C) Lignin hemi cellulose, protein and lipid
D) Hemi cellulose, cellulose, tubulin and lignin
24. Cytoskeleton is made up of
A) Proteinaceous filaments
B) Calcium carbonate granules
C) Callose deposits
D) Cellulosic microfibrils
25. Vacuole in a plant cell
A) Lacks membrane and contains water
and excretory substances
B) Is membrane-bound and contains
storage proteins and lipids
C) Is membrane-bound and contains water
and excretory substances
D) Lacks membrane and contains air
26. Assertion(A): Eukaryotic cells have the
ability to adopt a variety of shapes and carry
out directed movements.
Reason(A): There are three principal types of
protein filaments-actin filament, microtubules
and intermediate filaments, which constitute
the cytoskeleton.
A) Both A and R are true and the R is the
correct explanation of the A.
B) Both A and R are true but the R is not
the correct explanation of the A.
C) A is true statement but R is false.
D) Both A and R are false.
27. The non-sister chromatids twist around and
exchange segments with each other during
A) Leptotene
B) Diakinesis
C) Diplotene
D) Pachytene
28. Synapsis occurs between
1) mRNA and ribosomes
2) A male and a female gamete
3) Two homologous chromosomes
4) Spindle fibres and centromere
MAHESH MOKIRALA
M.Sc, M.Ed., TS & AP SET
VIVEKANANDA STUDY
CIRCLE
9491 997 365
Choose the right answer from the above options
A) Only 1
B) 1 and 2
C) Only 3
D) 3 and 4
29. Cells in G0 phase of cell cycle
A) Exit cell cycle
B) Enter cell cycle
C) Suspend cell cycle D) Terminate cell cycle
30. In the somatic cell cycle
A) In G1 phase DNA content is double the
amount of DNA present in the original cell
B) A short inter phase is followed by a
long mitotic phase
C) DNA replication takes place in S-phase
D) G2 phase follows mitotic phase
31. Which of the following is unique to mitosis
and not a part of meiosis?
A) Homologous chromosomes pair and
form bivalents
B) Chromatids are separated during anaphase
C) Homologous chromosomes behave
independently
D) Homologous chromosomes crossover
32. One strand of DNA has the following
sequence of nucleotide 3’ ATTCGCTAT
5’ so the other strand of DNA has
A) 5’ TAAGCGATA 3’
B) 3’ TAAGCGATA 5’
C) 5’ GACGCGATA 3’
D) 3’ GACGCGATA 5’.
33. Assertion(A): Phase of cell division is also
known as formative phase.
Reason(R): In formative phase new cells are
produced from pre-existing cells through
meiosis division.
A) Both A and R are true and R is the
correct explanation of the A.
B) Both A and R are true but the R is not
the correct explanations of A.
C) A is true, but R is false.
D) Both A and R are false.
ANSWERS
1.B
7.B
13.C
19.D
25. C
31. C
2.B
8.A
14.A
20.A
26.A
32. A
3.A
9.B
15. A
21. A
27. D
33.C
4.A
10.A
16. C
22. D
28.C
34.C
5.C
11.B
17.B
23. B
29.C
35. C
6.A
12.A
18.D
24. A
30.C