Cell Cycle Biology Test 01

Total Questions: 25

5 - Prior to cell division, each chromosome replicates or duplicates its genetic material, the products are connected by a centromere and are called:

A ) Sister chromosomes
B ) Homologous chromosomes
C ) Non-sister chromatids
D ) Sister chromatids ✅

6 - The process of mitosis ensures that:

A ) Each new cell is genetically different from its parent
B ) Each new cell receives the proper number of chromosomes ✅
C ) Cells will divide at the appropriate time
D ) Chromosomes duplicate without errors.

7 - Cytokinesis in a plant cell is characterized by:

A ) The equal division of homologous chromosomes
B ) A pinching off of the cell membrane to divide the cell
C ) The formation of a cell plate in the cytoplasm ✅
D ) The movement of the chromosomes from the metaphase plate

8 - Which of the following is unique to mitosis and not a part of meiosis-1?

A ) Homologous chromosomes pair forming bivalents.
B ) Homologous chromosomes cross over
C ) Chromosome pairs are broken during anaphase
D ) Chromatids separate during anaphase ✅

9 - Which event distinguishes meiosis from mitosis?

A ) Concentration of chromosomes
B ) Loss of the nuclear membrane
C ) Formation of metaphase plate
D ) Pairing of homologous chromosomes. ✅

10 - In which stage of the cell cycle most cells spend their lives?

A ) Prophase ✅
B ) Metaphase
C ) Interphase
D ) Telophase

11 - Which of the following distinguishes meiosis from mitsis?

A ) The chromosome number is reduced.
B ) Chromosomes undergo crossing over.
C ) Daughter cells are genetically different from the parent cell
D ) All of the above

12 - For mitosis, the chromosomes of the cells duplicated during interphase. when do the chromosomes duplicate for meiosis?

A ) Before meiosis 1 ✅
B ) Before meiosis 11
C ) During Meiosis -1
D ) Do not duplicate

13 - Find the correct statement.

A ) Homologous chromosomes from pairs during mitosis.
B ) Chromosomes do not duplicate in the interphase preceding meiosis -1.
C ) Homologous chromosomes from pairs during meiosis but not mitosis. ✅
D ) Spindles are not required during meiosis.

14 - What reason would you suggest for the fact that the total DNA content of each daughter cell is reduced during meiosis?

A ) Chromosomes do not duplicate during the interphase before meiosis 1.
B ) Chromosomes do not duplicate between meiosis 1 and 11. ✅
C ) Half of the chromosomes from each gamete are broken.
D ) Sister chromatids separate during anaphase of mitosis 1.

15 - If you observe a cell like this one, what phase of mitosis is it?

A ) Anaphase ✅
B ) Telophase
C ) Metaphase
D ) Prophase

16 - Specific enzymes are synthesized by:

A ) G0
B ) G2
C ) S phase
D ) G1 ✅

17 - The phase which can exist for life is:

A ) G0 ✅
B ) G2
C ) S phase
D ) G1

18 - Chromosomes become double during:

A ) G2
B ) G0
C ) G1
D ) S phase ✅

19 - The longest phase is:

A ) Mitotic phase
B ) Meiosis
C ) Cell cycle
D ) Interphase ✅

20 - The point at which spindle fibre attaches the chromosomes is called:

A ) Kinetochore ✅
B ) Non-kinetochore
C ) Both a and b
D ) Centromere

21 - The chromosomes are attracted in the equator of spindle in:

A ) Prophase
B ) Telophase
C ) Anaphase
D ) Metaphase ✅

22 - Chromatids get separated from each other during:

A ) Telophase
B ) Prophase
C ) Anaphase ✅
D ) Metaphase

23 - Chromatids are condensed during:

A ) Anaphase
B ) Telophase
C ) Prophase ✅
D ) Metaphase

24 - Uncoiling of chromosomes takes place during:

A ) Prophase
B ) Telophase ✅
C ) Anaphase
D ) Metaphase

25 - The division of nucleus is:

A ) Mitosis
B ) Karyokinesis ✅
C ) Cytokinesis
D ) Meiosis