Cell Division Quiz (Focus ---Mitosis)

Q 1:Cell division is the process by which a parent cell divides into two or more daughter cells.The corresponding sort of cell division in prokaryotes is known as ?
binary fission
mitosis
meiosis

Q 2:Click false staement.

This type of cell division in eukaryotes is known as mitosis, and leaves the daughter cell capable of dividing again.
The pattern of cell division that transforms eukaryotic stem cells into gametes--sperm in males or ova in females- is same as that of eukaryotic somatic-non-germ cells.
This type of cell division present only in eukaryotes, called meiosis, a cell is permanently transformed into a gamete and cannot divide again until fertilization.

Q 3:Multicellular organisms replace worn-out cells through cell division. In some animals, however, cell division eventually halts. In humans this occurs on average, after 52 divisions, known as the ?
Fixed Limit
Hayflick limit
Pot Limit

Q 4:An enzyme called ............, present in large quantities in cancerous cells, rebuilds the telomeres, allowing division to continue indefinitely.
telomerase
transferases
hydrolases

Q 5:Cell was first discovered by ............... in 1665 in sections of cork. He only coined the term 'Cell'.
Robert Hill
Robert Hooke
Alexander Flemming

Q 6:Interphase is divided into three phases, G1 (first gap), S (synthesis), and G2 (second gap). During all three phases, the cell grows by producing proteins and cytoplasmic organelles. However, chromosomes are replicated only during the?
G1 Phase
S Phase
G2 Phase

Q 7:...............is a reductive cell division. It involves two divisions to produce four non-identical daughter cells each containing half the number of chromosomes of the parent cell.
Meiosis
Mitosis
Binary Fission

Q 8:Normally, the genetic material in the nucleus is in a loosely bundled coil called chromatin. At the onset of prophase, chromatin condenses together into a highly ordered structure called a ?
ribosome
chromosome
lysosome

Q 9:Close to the nucleus are structures called centrosomes, which are made of a pair of centrioles. The centrosome is the coordinating center for the cell's ............. ?
Proximal convoluted tubule
Microtubule
Malphigian tubule

Q 10:A ................... is a complex protein structure that is analogous to a ring for the microtubule hook; it is the point where microtubules attach themselves to the chromosome.
kinetochore
centrosome
centriole

Q 11:Prometaphase is sometimes considered part of ...............
Prophase
Anaphase
Metaphase

Q 12:....................is a reversal of prophase and prometaphase events.

Anaphase
Telophase
Metaphase

Q 13:In Mitosis,The end of cytokinesis marks the end of the ....-phase.
G
S
M

Q 14:Endomitosis is a variant of mitosis without nuclear or cellular division, resulting in cells with many copies of the same chromosome occupying a single nucleus. This process may also be referred to as endoreduplication and the cells as ...............
endoploid
haploid
diploid

Q 15:The ..... Phase represents the phase when the actual cell division or mitosis occurs
S
M
G

Q 16:The interphase lasts more than ....% of the duration of cell cycle.
50
60
95

Q 17:...........phase corresponds to the interval between mitosis and initiation
of DNA replication.
G1
G2
S

Q 18:In animal cells, during the .... phase, DNA replication begins in the
nucleus, and the centriole duplicates in the cytoplasm.
G1
S
M

Q 19:Some cells in the adult animals do not appear to exhibit division
(heart cells) and many other cells divide only occasionally, as needed to
replace cells that have been lost because of injury or cell death. These
cells that do not divide further exit G1 phase to enter an inactive stage
called ................ stage of the cell cycle.
telophase
interphase
quiescent

Q 20:The spindle fibres shorten and the centromere splits, separated sister chromatids are pulled along behind the centromeres.Which is this stage?
Anaphase
Metaphase
Prophase

Q 21:Click the wrong match.
The chromosomes reach the poles of their respective spindles. Nuclear envelope reform before the chromosomes uncoil. The spindle fibres disintegrate.--Prophase
The spindle fibres attach themselves to the centromeres of the chromosomes and align the the chromosomes at the equatorial plate.---Metaphase
This is the last stage of mitosis. It is the process of splitting the daughter cells apart. A furrow forms and the cell is pinched in two. Each daughter cell contains the same number and same quality of chromosomes.---Cytokinasis

Q 22:This is the most dramatic period of the cell cycle, involving a major
reorganisation of virtually all components of the cell. Since the number of
chromosomes in the parent and progeny cells is the same, it is also called as
equational division.Which phase are we talking of?

G1 Phase
M Phase
S phase

Q 23:Click the wrong consequence of mitotic division?
Two identical daughter cells are formed.
The cell divide once.
Variation in genetic information

Q 24:Red blood cells have short live spans of about .... months and need to be replaced constantly by mitosis.
4
8
1

Q 25:The production of offspring by sexual reproduction includes the fusion
of two gametes, each with a complete haploid set of chromosomes. Gametes
are formed from specialised diploid cells. This specialised kind of cell
division that reduces the chromosome number by half results in the
production of haploid daughter cells. This kind of division is called ...........
Mitosis
Meiosis
Binary Fission