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. |
Which term is used to denote parent plants that are truly bred? |
| A. | p |
| B. | F1 |
| C. | F2 |
| D. | d |
| Answer» B. F1 | |
| 2. |
Which of the following type of DNA sequences for the basis of DNA fingerprinting? |
| A. | Satellite DNA |
| B. | Minisatellite DNA |
| C. | Microsatellite DNA |
| D. | Tandem sequences |
| Answer» C. Microsatellite DNA | |
| 3. |
Which of following helps analyze genotype and traits that run in a family? |
| A. | Punnett's square |
| B. | chi square test |
| C. | pedigree tree |
| D. | phylogenetic tree |
| Answer» D. phylogenetic tree | |
| 4. |
Transposase is a __________ enzyme. |
| A. | digestive |
| B. | mutant |
| C. | bacterial |
| D. | lysosomal |
| Answer» D. lysosomal | |
| 5. |
Breeding of two different true-breeding varieties of plants is called |
| A. | mixing |
| B. | hybridization |
| C. | non breeding |
| D. | self breeding |
| Answer» C. non breeding | |
| 6. |
The haploid set of human chromosomes consist of __________ chromosomes. |
| A. | 22 |
| B. | 23 |
| C. | 24 |
| D. | 25 |
| Answer» D. 25 | |
| 7. |
Which term is used to describe an organism's genetic makeup? |
| A. | characteristic |
| B. | phenotype |
| C. | genotype |
| D. | traits |
| Answer» D. traits | |
| 8. |
Transposon 'LINE-1' account for how much of total human genome? |
| A. | 0.17 |
| B. | 0.1 |
| C. | 0.09 |
| D. | 0.08 |
| Answer» B. 0.1 | |
| 9. |
People of which of following descent are more susceptible to Cystic fibrosis? |
| A. | Jews |
| B. | Mediterranean |
| C. | European |
| D. | black |
| Answer» D. black | |
| 10. |
When two alleles each affect phenotype in separate distinguishable ways, they are said to be |
| A. | codominant |
| B. | semi dominant |
| C. | totally dominant |
| D. | incomplete dominant |
| Answer» B. semi dominant | |
| 11. |
What is haploid genome size of panda Ailuropoda melanoleuca? |
| A. | 20000 mb |
| B. | 500 mb |
| C. | 1000 mb |
| D. | 2400 mb |
| Answer» E. | |
| 12. |
How many sickle cell alleles does it take for disease to manifest itself? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 0 |
| Answer» B. 2 | |
| 13. |
In which of following LINE-1 retrotransposons are most active? |
| A. | developing brain |
| B. | gut |
| C. | heart cells |
| D. | muscle |
| Answer» B. gut | |
| 14. |
How many types of carbohydrates are present at surface of red blood cell that determines blood type? |
| A. | 2 |
| B. | 4 |
| C. | 7 |
| D. | 1 |
| Answer» B. 4 | |
| 15. |
How does Phenylketonuria occur when people cannot metabolize which of following? |
| A. | pyruvate |
| B. | phenylalanine |
| C. | glucose |
| D. | fructose |
| Answer» C. glucose | |
| 16. |
Crossing an organism of unknown genotype with that of a recessive is called |
| A. | Punnett's square |
| B. | testcross |
| C. | breeding cross |
| D. | breeding square |
| Answer» C. breeding cross | |
| 17. |
Which of following is true for attached earlobes? |
| A. | dominant trait |
| B. | recessive trait |
| C. | silent trait |
| D. | universal trait |
| Answer» B. recessive trait | |
| 18. |
Which of following DNA type is present mostly at telomeres and centromeres? |
| A. | simple sequence DNA |
| B. | transposons |
| C. | non-coding DNA |
| D. | coding DNA |
| Answer» B. transposons | |
| 19. |
A diagram used to predict offspring from breeding individuals of known genetic makeup is called |
| A. | offspring square |
| B. | breeding cell |
| C. | Kupffer's square |
| D. | Punnett's square |
| Answer» E. | |
| 20. |
Percentage of highly repeated DNA sequences in a genome is __________ |
| A. | 1-10 % |
| B. | 15-20% |
| C. | 20-30% |
| D. | 35-40% |
| Answer» B. 15-20% | |
| 21. |
Circular DNAs are negatively supercoiled. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 22. |
Sites in the genome that are different among individuals are referred to as __________________ |
| A. | intergenic |
| B. | intronic |
| C. | genetic polymorphisms |
| D. | interstitial |
| Answer» D. interstitial | |
| 23. |
Which of the following blocks of DNA have a low frequency of recombination? |
| A. | Phenotypes |
| B. | Allotypes |
| C. | Isotopes |
| D. | Haplotypes |
| Answer» E. | |
| 24. |
Which of following rule states that probability of an event that can occur in two or more independent, mutually exclusive ways is sum of individual probabilities? |
| A. | addition rule |
| B. | multiplication rule |
| C. | subtraction rule |
| D. | division rule |
| Answer» B. multiplication rule | |
| 25. |
Which of following type of transposons move with help of an RNA intermediate? |
| A. | jumping genes |
| B. | intermediate transposons |
| C. | retrotransposons |
| D. | rRNA transposons |
| Answer» D. rRNA transposons | |
| 26. |
Normal gene of cystic fibrosis codes for membrane protein that transports which of following ions? |
| A. | potassium |
| B. | chloride |
| C. | sodium |
| D. | calcium |
| Answer» C. sodium | |
| 27. |
Hemoglobin protein has which of following protein subunits? |
| A. | alpha and beta |
| B. | alpha and gamma |
| C. | beta and gamma |
| D. | multiple alpha |
| Answer» B. alpha and gamma | |
| 28. |
A heritable feature that variates amongst individuals are called |
| A. | character |
| B. | feature |
| C. | attribute |
| D. | trait |
| Answer» B. feature | |
| 29. |
Height and weight are examples of which of following characters? |
| A. | continuum |
| B. | qualitative |
| C. | quantitative |
| D. | subjective |
| Answer» D. subjective | |
| 30. |
How many base pairs are there in LINE-1 unit? |
| A. | 100 |
| B. | 10000 |
| C. | 8900 |
| D. | 6500 |
| Answer» E. | |
| 31. |
A disease of nervous system caused by a dominant allele that has no obvious phenotype till 40 years of age is called |
| A. | alzheimer's disease |
| B. | parkinson's disease |
| C. | Huntington's disease |
| D. | Tay Sach's |
| Answer» D. Tay Sach's | |
| 32. |
How many alleles does gene have which determines human blood type? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 33. |
Considering only SNPs, human and chimpanzee genome differs by what percentage? |
| A. | 1.2 |
| B. | 34 |
| C. | 50 |
| D. | 60 |
| Answer» B. 34 | |
| 34. |
Moderately repeated DNA sequences can vary from _______ percent of the total DNA. |
| A. | 10-20 |
| B. | 20-80 |
| C. | 20-50 |
| D. | 50-80 |
| Answer» C. 20-50 | |
| 35. |
If F1 offspring have a phenotype that is hybrid of parents, alleles of gene are said to have |
| A. | incomplete dominance |
| B. | complete dominance |
| C. | semi dominance |
| D. | total dominance |
| Answer» B. complete dominance | |
| 36. |
Diagnosing a disease from a sample of amniotic fluid is called |
| A. | amniocentesis |
| B. | amniotic testing |
| C. | Amniotest |
| D. | pedigree |
| Answer» B. amniotic testing | |
| 37. |
What percentage of Europeans are carriers of Cystic fibrosis allele? |
| A. | 0.01 |
| B. | 0.02 |
| C. | 0.03 |
| D. | 0.04 |
| Answer» E. | |
| 38. |
Reannealing or renaturation of the DNA is the basis of the technique ___________ |
| A. | paper chromatography |
| B. | ultraviolet spectroscopy |
| C. | nucleic acid hybridization |
| D. | gel electrophoresis |
| Answer» D. gel electrophoresis | |
| 39. |
What was predicted character ratio for second law of inheritance? |
| A. | 9:3:3:1 |
| B. | 9:1:3:3 |
| C. | 3:2:1:9 |
| D. | 1:3:3:1 |
| Answer» B. 9:1:3:3 | |
| 40. |
Which term is used to describe an organism's observable traits? |
| A. | trait |
| B. | genotype |
| C. | characteristic |
| D. | phenotype |
| Answer» E. | |
| 41. |
Which of following enzymes is required for transposing elements? |
| A. | transposon |
| B. | phosphorylation |
| C. | kinase |
| D. | helicase |
| Answer» B. phosphorylation | |
| 42. |
What is haploid genome size of bacteria Hemophilus influenza? |
| A. | 1.8 mb |
| B. | 2.9 mb |
| C. | 9 mb |
| D. | 190 mb |
| Answer» B. 2.9 mb | |
| 43. |
Which of following is scientific name for soil nematode? |
| A. | Caenorhabditis elegans |
| B. | drosophila melanogaster |
| C. | pongo pygmaeus |
| D. | Zea mays |
| Answer» B. drosophila melanogaster | |
| 44. |
Gene family that encodes for beta-globin protein resides on which of following chromosomes? |
| A. | 9 |
| B. | 6 |
| C. | 11 |
| D. | 3 |
| Answer» D. 3 | |
| 45. |
Which of following is not a part of rRNA family? |
| A. | 28s |
| B. | 18s |
| C. | 5.8s |
| D. | 10s |
| Answer» E. | |
| 46. |
What is haploid genome size of water flea Daphnia pulex? |
| A. | 1 mb |
| B. | 200 mb |
| C. | 2.9 mb |
| D. | 9 mb |
| Answer» C. 2.9 mb | |
| 47. |
How much of total human genome is made by simple sequence DNA? |
| A. | 0.05 |
| B. | 0.07 |
| C. | 0.03 |
| D. | 0.1 |
| Answer» D. 0.1 | |
| 48. |
When did Neanderthals go extinct? |
| A. | 50,000 years ago |
| B. | 100,000 years ago |
| C. | 70,000 years ago |
| D. | 30,000 years ago |
| Answer» E. | |
| 49. |
How many sequencing centers were involved in human genome project? |
| A. | 20 |
| B. | 30 |
| C. | 40 |
| D. | 50 |
| Answer» B. 30 | |
| 50. |
Gene family that encodes for alpha globin protein resides on which of following chromosomes? |
| A. | 1 |
| B. | 4 |
| C. | 16 |
| D. | 18 |
| Answer» D. 18 | |