MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Radial array that originates from each centrosome is called |
| A. | chromatin |
| B. | cluster |
| C. | aster |
| D. | histone |
| Answer» D. histone | |
| 2. |
Which of following cell types divide throughout life? |
| A. | skin cells |
| B. | nerve cells |
| C. | liver cells |
| D. | brain cells |
| Answer» B. nerve cells | |
| 3. |
Which of following can give rise to all sorts of issues? |
| A. | fetal cells |
| B. | stem cells |
| C. | bone marrow |
| D. | brain cells |
| Answer» C. bone marrow | |
| 4. |
Which of following enzyme cleaves cohesin proteins? |
| A. | Segregase |
| B. | Separase |
| C. | protease |
| D. | cohesinase |
| Answer» C. protease | |
| 5. |
Which of following results from loss of cell cycle control? |
| A. | cancer |
| B. | infection |
| C. | stunted growth |
| D. | neurodegeneration |
| Answer» B. infection | |
| 6. |
Place at genomic DNA where replication starts is called |
| A. | start of replication |
| B. | beginning of replication |
| C. | origin of replication |
| D. | initiator of replication |
| Answer» D. initiator of replication | |
| 7. |
How many copies of DNA segment can be made in a few hours by using PCR technique? |
| A. | hundreds |
| B. | thousands |
| C. | millions |
| D. | billions |
| Answer» E. | |
| 8. |
Specific area that is recognized by restriction enzymes is called |
| A. | restriction site |
| B. | cutting site |
| C. | cutter |
| D. | DNA site |
| Answer» B. cutting site | |
| 9. |
How many chromosomes are there in elephants? |
| A. | 56 |
| B. | 90 |
| C. | 48 |
| D. | 123 |
| Answer» B. 90 | |
| 10. |
How many centromeres each sister chromatid has? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» B. 2 | |
| 11. |
About how many trillion somatic cells are present in a human body? |
| A. | 200 |
| B. | 500 |
| C. | 1000 |
| D. | 2 |
| Answer» B. 500 | |
| 12. |
A tumor that can cause serious problems in body is called |
| A. | safe |
| B. | malignant |
| C. | premature |
| D. | benign |
| Answer» C. premature | |
| 13. |
Which of following is longest phase of cell cycle? |
| A. | m phase |
| B. | g phase |
| C. | s phase |
| D. | interphase |
| Answer» E. | |
| 14. |
Which of following is an example of an anticancer drug? |
| A. | Taxol |
| B. | Panadol |
| C. | heparin |
| D. | ribavirin |
| Answer» B. Panadol | |
| 15. |
Spread of cancer cells to parts of body other than origin site is called |
| A. | spreading |
| B. | metastasis |
| C. | transformation |
| D. | transduction |
| Answer» C. transformation | |
| 16. |
How many chromosomes are there in chimpanzees? |
| A. | 90 |
| B. | 48 |
| C. | 56 |
| D. | 123 |
| Answer» C. 56 | |
| 17. |
In which of following forms, Genomic DNA is present in bacteria? |
| A. | linear |
| B. | circular |
| C. | scattered |
| D. | clustered |
| Answer» C. scattered | |
| 18. |
Which of following is an example of single-celled Eukaryote? |
| A. | virus |
| B. | bacteria |
| C. | archaea |
| D. | amoeba |
| Answer» E. | |
| 19. |
What is 5 to 3 prime end sequence of PvuI enzyme? |
| A. | a t g c |
| B. | g c t t a |
| C. | a a t c g |
| D. | c g a t c g |
| Answer» E. | |
| 20. |
Small arm of chromosome is denoted by alphabet |
| A. | p |
| B. | r |
| C. | t |
| D. | q |
| Answer» B. r | |
| 21. |
What is another term for reproductive cells? |
| A. | gametes |
| B. | sperm cells |
| C. | egg cells |
| D. | chromosomes |
| Answer» B. sperm cells | |
| 22. |
Mitotic spindle originates from |
| A. | centromere |
| B. | centrosome |
| C. | chromatin |
| D. | histones |
| Answer» C. chromatin | |
| 23. |
Sequence 5-AAGCTT-3 is recognized by which of following enzymes? |
| A. | HindIII |
| B. | bnf |
| C. | inf |
| D. | mnii |
| Answer» B. bnf | |
| 24. |
After about how many base pairs does an SNP occur in human DNA? |
| A. | 90-100 |
| B. | 20-30 |
| C. | 100-110 |
| D. | 100-300 |
| Answer» E. | |
| 25. |
What is minimum length of primers that need to present for them to be functional in a PCR reaction? |
| A. | 200 nucleotides |
| B. | 15 nucleotides |
| C. | 3 nucleotides |
| D. | 6 nucleotides |
| Answer» C. 3 nucleotides | |
| 26. |
Which of following describes silencing of a gene? |
| A. | gene knockout |
| B. | gene shut down |
| C. | gene unit |
| D. | gene exit |
| Answer» B. gene shut down | |
| 27. |
Which of following chromosomal combination represents a female? |
| A. | XX |
| B. | XY |
| C. | YY |
| D. | YO |
| Answer» B. XY | |
| 28. |
At what temperature is DNA first exposed to in a PCR reaction to denature it? |
| A. | 10° C |
| B. | 56° C |
| C. | 80° C |
| D. | 95° C |
| Answer» E. | |
| 29. |
What was cost of sequencing first human genome? |
| A. | 1 billion dollars |
| B. | 5 billion dollars |
| C. | 10 billion dollars |
| D. | 0.1 billion dollars |
| Answer» B. 5 billion dollars | |
| 30. |
Which of organs are referred to as gonads? |
| A. | excretory organs |
| B. | respiratory organs |
| C. | reproductive organs |
| D. | circulatory organs |
| Answer» C. reproductive organs | |
| 31. |
Which of following is separates by using Gel electrophoresis technique? |
| A. | DNA fragments |
| B. | proteins |
| C. | enzymes |
| D. | ions |
| Answer» B. proteins | |
| 32. |
How many daughter cells are formed after meiosis? |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 33. |
What are variations in coding or noncoding DNA called? |
| A. | heterogeneity |
| B. | polymorphisms |
| C. | variations |
| D. | differences |
| Answer» C. variations | |
| 34. |
How many total combinations of daughter cells are possible after meiosis of a single diploid cell? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 35. |
How many stages process of meiosis has? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 36. |
All following factors contribute towards genetic variation except |
| A. | independent assortment of chromosomes |
| B. | crossing over |
| C. | random fertilization |
| D. | mitosis |
| Answer» E. | |
| 37. |
Addition of which of following groups to bacterial DNA protects it from its restriction enzymes? |
| A. | acetyl |
| B. | nitrogen |
| C. | ethyl |
| D. | methyl |
| Answer» E. | |
| 38. |
Small circular pieces of DNA inside a bacteria that replicate independently are called |
| A. | prions |
| B. | viroids |
| C. | plasmids |
| D. | genome |
| Answer» D. genome | |
| 39. |
Cell cycle checkpoint is present in all following phases except |
| A. | m phase |
| B. | g1 phase |
| C. | g2 phase |
| D. | s phase |
| Answer» E. | |
| 40. |
Protein around which DNA is wound is called |
| A. | histones |
| B. | Chromatosomes |
| C. | chromatin |
| D. | nucleosome |
| Answer» E. | |
| 41. |
How many chromosomes are there in hedgehogs? |
| A. | 123 |
| B. | 48 |
| C. | 90 |
| D. | 56 |
| Answer» D. 56 | |
| 42. |
Which of following has characteristic of a cell plate? |
| A. | prokaryotic cells |
| B. | reproductive cells |
| C. | somatic cells |
| D. | plant cells |
| Answer» E. | |
| 43. |
Transmission of traits from one generation to next is called |
| A. | transmission |
| B. | heredity |
| C. | transduction |
| D. | mutation |
| Answer» C. transduction | |
| 44. |
Which term defines division of genetic material in reproductive cells? |
| A. | mitosis |
| B. | meiosis |
| C. | transverses |
| D. | Nucleosis |
| Answer» C. transverses | |
| 45. |
Determining complete order of nucleotides on a DNA segment is called |
| A. | DNA order |
| B. | DNA sequencing |
| C. | DNA reading |
| D. | DNA organizing |
| Answer» C. DNA reading | |
| 46. |
X shape formed by homologous chromosomes during division stage is called |
| A. | cohesin |
| B. | chromatin |
| C. | chiasmata |
| D. | cross over |
| Answer» D. cross over | |
| 47. |
Which of following is inhibited by drug imatinib? |
| A. | phosphatase |
| B. | lysozymes |
| C. | mak |
| D. | tyrosine kinase |
| Answer» E. | |
| 48. |
Arrangement of chromosomes in pairs is called |
| A. | karyotype |
| B. | karyogamy |
| C. | Karyoscope |
| D. | Chromotype |
| Answer» B. karyogamy | |
| 49. |
In which of following stages sister chromatids are separated? |
| A. | anaphase |
| B. | telophase |
| C. | prometaphase |
| D. | metaphase |
| Answer» B. telophase | |
| 50. |
Which of following is scientific name for fruit fly? |
| A. | rana tigrina |
| B. | drosophila melanogaster |
| C. | bos taurus |
| D. | Anthophilia |
| Answer» C. bos taurus | |