MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The intron structure of genes in a particular eukaryote is used for predicting the location of genes of genome sequences. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Introns can remain at a corresponding position in a eukaryotic gene for long periods of evolutionary time. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Eukaryotic genes that encode proteins are interrupted by ________ |
| A. | exons of varying length and number |
| B. | introns of varying length and number |
| C. | exons of varying length and but same number |
| D. | introns of varying number but same length |
| Answer» C. exons of varying length and but same number | |
| 4. |
Which of the given features is incorrect? |
| A. | TEs are present in few particular chromosomes |
| B. | TEs are present in all of the chromosomes |
| C. | Abundance of TEs varies |
| D. | TEs can comprise a large portion of the genomes of higher eukaryotes, both plants and animals |
| Answer» B. TEs are present in all of the chromosomes | |
| 5. |
A third category of TEs has features of both class I and class II TEs. These miniature, inverted repeat TEs (MITES) are ________ in length. |
| A. | 400 bp |
| B. | 500 Mbp |
| C. | 300 kbp |
| D. | 600 kbp |
| Answer» B. 500 Mbp | |
| 6. |
The human genome contains about _________ of class II of elements that probably predate human evolution (Smit 1996). |
| A. | 2,000 copies |
| B. | 200,000 copies |
| C. | 2,00,00,000 copies |
| D. | 20,00,000 copies |
| Answer» C. 2,00,00,000 copies | |
| 7. |
Vertebrate chromosomes have long (>300 kb) regions of distinct GC richness, repeat content, and gene density, designated isochores in a model of genome organization proposing that genomes are made up of distinct segments of unique composition. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
_____ of the human genome comprises one particular family of the SINE Element, designated Alu (1.2 million copies). |
| A. | 10% |
| B. | 20% |
| C. | 60% |
| D. | 40% |
| Answer» B. 20% | |
| 9. |
The retroposons include short _________ interspersed nuclear elements (SINES). |
| A. | 90 4000 bp long |
| B. | 80 500 Mbp long |
| C. | 80 300 bp long |
| D. | 100 3000 bp long |
| Answer» D. 100 3000 bp long | |
| 10. |
More than _____ of the human genome consists of interspersed repetitive sequences derived from TEs (transposable elements). |
| A. | one-third |
| B. | one-eighth |
| C. | one-fifth |
| D. | half |
| Answer» B. one-eighth | |