McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .
Chapters
| 901. |
The period between two successive divisions is called...... |
| A. | Cell division |
| B. | Cellcycle |
| C. | Interphase |
| D. | G1 phase |
| Answer» B. Cellcycle | |
| 902. |
The chromosomes are distributed in two cells in half thir number is called. |
| A. | Mitosi |
| B. | Cytokineis |
| C. | Heterotypic division |
| D. | Cellcycle |
| Answer» C. Heterotypic division | |
| 903. |
What is the average cell cycle span of a human cell ? |
| A. | 17 Hrs. |
| B. | 20 Hrs. |
| C. | 24 Hrs. |
| D. | 30 Hrs. |
| Answer» C. 24 Hrs. | |
| 904. |
During cell cycle DNA replication takes place in....... |
| A. | G1 - phase |
| B. | S - phase |
| C. | G2 - phase |
| D. | M - phase |
| Answer» B. S - phase | |
| 905. |
During which of the following phase of mitosis asters appear round the centrioles ? |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» A. Prophase | |
| 906. |
At Which sub stage of meiosis crossing over takes place ? |
| A. | Leptotene |
| B. | Zygotene |
| C. | Pachytene |
| D. | Diplotene |
| Answer» C. Pachytene | |
| 907. |
During which of the following stage of division nuclear membrane and nucleolus reappear ? |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» D. Telophase | |
| 908. |
What is average cell cycle span of a Yeast cell ? |
| A. | 70 min. |
| B. | 85 min. |
| C. | 90 min. |
| D. | 120 min. |
| Answer» C. 90 min. | |
| 909. |
Interphase can be divided into how many sub phases ? |
| A. | 2 |
| B. | 3 |
| C. | 8 |
| D. | 5 |
| Answer» B. 3 | |
| 910. |
In how many phase the mitosis can be divided ? |
| A. | 4 |
| B. | 8 |
| C. | 3 |
| D. | 5 |
| Answer» A. 4 | |
| 911. |
The result of meiosis is the formation of....... |
| A. | 4 cell |
| B. | 2 cells |
| C. | 8 cells |
| D. | 6 cells |
| Answer» C. 8 cells | |
| 912. |
The locations at which crossing over occurs are known as...... |
| A. | Centromere |
| B. | Kinetochore |
| C. | Chiasmata |
| D. | Centriole |
| Answer» C. Chiasmata | |
| 913. |
Complete disintegration of nuclear membrane and nucleolus take place during which stage of mitosis ? |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» A. Prophase | |
| 914. |
Which of the following structure will not be common to mitotic cell of a higher plant ? |
| A. | Cell plate |
| B. | Centromere |
| C. | Centriole |
| D. | Spindle fibre |
| Answer» C. Centriole | |
| 915. |
How many mitotic division are needed for a single cell to make 128 cells ? |
| A. | 54 |
| B. | 25 |
| C. | 34 |
| D. | 7 |
| Answer» D. 7 | |
| 916. |
Series of cell division is : |
| A. | prophase, metaphase, anaphase, telophase |
| B. | prophase, anaphase, metaphase, telophase |
| C. | prophase, metaphase, telophase, anaphase |
| D. | anaphase, metaphase, telophase, prophase |
| Answer» A. prophase, metaphase, anaphase, telophase | |
| 917. |
Meiosis involves : |
| A. | two nuclear division and one chromosome division |
| B. | two each nuclear and chromosome division |
| C. | one each nuclear and chromosome division |
| D. | one nuclear and two chromosomes division |
| Answer» A. two nuclear division and one chromosome division | |
| 918. |
Which of the correct order of phases in prophsae I ? |
| A. | Leptotene, diakinesis, pachytene, diplotene, zygotene |
| B. | Leptotene, zygotene, pachytene, diplotene, diakinesis |
| C. | Diakinesis, diplotene, pachytene, zygotene, leptotene |
| D. | Laptotene, pachytene, zygotene, diplotene, dikinesis |
| Answer» B. Leptotene, zygotene, pachytene, diplotene, diakinesis | |
| 919. |
In how many cells the meiotic division has taken place, if the total number of gametes produced are 32 ? |
| A. | 4 |
| B. | 16 |
| C. | 8 |
| D. | 32 |
| Answer» C. 8 | |
| 920. |
Prophase is characterized by : |
| A. | spliting of centromere |
| B. | thread like appearance of chromosomes |
| C. | arrangement of chromosomes on metaphic plate |
| D. | pairing of homologous chromosome |
| Answer» B. thread like appearance of chromosomes | |
| 921. |
Given :
|
| A. | 1, 2, 3, 4 |
| B. | 2, 3, 1, 4 |
| C. | 3, 2, 1, 4 |
| D. | 4, 3, 2, 1 |
| Answer» B. 2, 3, 1, 4 | |
| 922. |
Pairing of homologous chromosomes during zygotene is termed : |
| A. | synapse |
| B. | synapsida |
| C. | synapsis |
| D. | crossing over |
| Answer» C. synapsis | |
| 923. |
At which stage of mitosis chromatids separate and passes to different poles : |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» C. Anaphase | |
| 924. |
G2 phase is between : |
| A. | end of mitosis and start of S phase |
| B. | end of S phase and start of mitosis |
| C. | start of S phase and start of mitosis |
| D. | end of S phase and end of mitosis |
| Answer» B. end of S phase and start of mitosis | |
| 925. |
Post mitotic gap phase and synthesis phase of cell cycle are also respectively referred to as : |
| A. | G2 and |
| B. | G1 and S |
| C. | G1 and G2 |
| D. | S and G2 |
| Answer» B. G1 and S | |
| 926. |
If you are provided with root-tips of onion in your class and are asked to count the chromosome, which of the following stage can you most conviently look into |
| A. | Telophase |
| B. | Anaphase |
| C. | Prophase |
| D. | Metaphase |
| Answer» D. Metaphase | |
| 927. |
What is correct ? |
| A. | DNA – content become double during G1 phase. |
| B. | Duration of interphase is short as compared to M – phase. |
| C. | G2 – phase follows mitotic phase. |
| D. | DNA – replication occurs in S – phase. |
| Answer» D. DNA – replication occurs in S – phase. | |
| 928. |
A cell divides every one minute. At this rate of division it can fill a 100 ml of beaker in one hour. How much time does it take to fill a 50 ml beaker ? |
| A. | 30 minute |
| B. | 60 minute |
| C. | 59 minute |
| D. | 32 minute |
| Answer» C. 59 minute | |
| 929. |
At which phase of meiosis, the 2 cell, each with separated sister chromatids move towards opposite poles : |
| A. | anaphase-I |
| B. | anaphase-II |
| C. | metaphase-I |
| D. | metaphase-II |
| Answer» B. anaphase-II | |
| 930. |
During meiosis crossing over occurs between which part of homologous chromosome ? |
| A. | sister chromatid |
| B. | nonsister chromatids |
| C. | genes |
| D. | alleles |
| Answer» B. nonsister chromatids | |
| 931. |
During mitotic metaphase : |
| A. | crossing over occurs |
| B. | chromosomes are divided |
| C. | chromosomes become thread like and condensed |
| D. | chromosomes are located at equator. |
| Answer» D. chromosomes are located at equator. | |
| 932. |
In meiosis the daughter cells are not similar to that of parent because of : |
| A. | crossing over |
| B. | Synapsis |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» A. crossing over | |
| 933. |
Pick out the correct statements : |
| A. | Synapsis of homologous chromosomes takes place during prophase-I of meiosis. |
| B. | Division of centromeres takes place during anaphase I of meiosis. |
| C. | Spindle fibres disappear completely in telophase of mitosis. |
| D. | Nucleoli reappear at telophase I of meiosis |
| Answer» D. Nucleoli reappear at telophase I of meiosis | |
| 934. |
Assertion (A) : Phase of cell division is also known as dividing phase. Reason (R) : In mitotic 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 A. |
| B. | Both A and R are true but the R is not the correct explanation of A. |
| C. | A is true statement but R is false. |
| D. | Both A and R are false. |
| Answer» C. A is true statement but R is false. | |
| 935. |
Synapsis occurs between : |
| A. | m-RNA and ribosome |
| B. | spindle fibres and centromere |
| C. | two homologous chromosomes |
| D. | a male and a female gamete |
| Answer» C. two homologous chromosomes | |
| 936. |
During mitosis nuclear membrane and nucleolus begin to disappear at : |
| A. | Early mataphase |
| B. | Late metaphase |
| C. | Early prophase |
| D. | Late prophase |
| Answer» D. Late prophase | |
| 937. |
Cell cycle is divided in stages as given below Which is the correct pair ? |
| A. | C – kietochore |
| B. | D – synthesis phase |
| C. | A – cytokinesis |
| D. | B – metaphase |
| Answer» B. D – synthesis phase | |
| 938. |
IN which stage of mitosis division segregation of chromatids occur and they migrate at different polar ends. |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphas |
| D. | Telophase |
| Answer» C. Anaphas | |
| 939. |
Number of chromosomes are maintained from generation to generation by : |
| A. | Mitotic division |
| B. | Meiosis division |
| C. | Division |
| D. | Metamorphosis |
| Answer» B. Meiosis division | |
| 940. |
How many meiotic stage are essential for producing 28 cells from one cell ? |
| A. | 7 |
| B. | 14 |
| C. | 28 |
| D. | 64 |
| Answer» A. 7 | |
| 941. |
In diploid living organisms crossing over is responsible for ? |
| A. | Recombination of linked gene |
| B. | Dominancy of genes |
| C. | Linkage between genes |
| D. | No Segregation of genes |
| Answer» A. Recombination of linked gene | |
| 942. |
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ? |
| A. | 84 |
| B. | 21 |
| C. | 42 |
| D. | 63 |
| Answer» D. 63 | |
| 943. |
Select the correct option with respect to mitosis. |
| A. | Golgi complex and endoplasmic reticulum are still visible at the end of prophase. |
| B. | Chromosomes move to the spindle equator and get aligned along equatorial plate inmetaphase. |
| C. | Chromatids separate but remain in the centre of the cell in anaphase. |
| D. | Chromatids start moving towards opposite poles in telophase. |
| Answer» B. Chromosomes move to the spindle equator and get aligned along equatorial plate inmetaphase. | |
| 944. |
During gamete formation, the enzyme recombinase participate during : |
| A. | Anaphase-II |
| B. | Prophase-I |
| C. | Prophase-II |
| D. | Mataphase-I |
| Answer» B. Prophase-I | |
| 945. |
Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage ? |
| A. | Prophase-II during meiosi |
| B. | Prophase of mitosis |
| C. | Both prophase and metaphae of mitosi |
| D. | Prophase-I during meiosis |
| Answer» D. Prophase-I during meiosis | |
| 946. |
It is responsible for begininig of the life of organisms. |
| A. | Tissue |
| B. | Zygote |
| C. | Cell |
| D. | Embryonic layer |
| Answer» B. Zygote | |
| 947. |
Who proposed the cell theory. |
| A. | Singer and Nicholsen |
| B. | Schwann and schleiden |
| C. | Hook and Brown |
| D. | Robertson |
| Answer» B. Schwann and schleiden | |
| 948. |
Who proposed that new cells arise through cell division of pre-existing cells. |
| A. | Robert Hook |
| B. | Rudolf Virchow |
| C. | Robert Brown |
| D. | Singer |
| Answer» B. Rudolf Virchow | |
| 949. |
It is the Smallest Cell. |
| A. | Bacteria |
| B. | Mycoplasm |
| C. | Yeast |
| D. | Blue green algae |
| Answer» B. Mycoplasm | |
| 950. |
Prokaryotic cells have which architectural regions? |
| A. | Cell |
| B. | Appendages |
| C. | Nucleus |
| D. | a-b-c,all |
| Answer» B. Appendages | |
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