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Exam 3
Old questions
| Question | Answer |
|---|---|
| Presentation Molecular Mechanism of gene Expression (1 pt) | It recruits RNA Polymerase |
| Presentation Molecular Mechanism of gene Expression part 1 (1pts) | Probiotics affect insuling production |
| Presentation Bacteria and Virsus (1pts ) | Some bacteria develop defence mechanisms agaisnt Bacteriophages |
| Which of the following statements on Covid-19 is false (1pt) | All individuals testing postive for COVID-19 Infectious |
| Presentation Chromosome and Chromsome (1pt) | Unbalanced set of chromosome in a cell |
| The product of a lacl gene (1pt) | binds to the operator |
| RNA interfernece (1pt) | triggers degration of RNA transcripts contasining homoogous sequences |
| Heavy Methalation (1pt) | low trancstiption rate |
| MET,PHE,LEU (1pt) | LEU |
| Enzyme responsible for transcribing all protein coding genes (1pt) | RNA PLY || |
| What is true about poly peptide chains (1pt) | Both have linear , unbranched molecules |
| Introns witihin eukaryotic transcripts (1pt) | Vary considerable in size and number |
| WHich is common to both DNA REp and transption (pt) | a sugar phosphate bond between 3'hydroxy; and 5' phsphate |
| 4* 10^6 cells , 0.5ml , 200 cells (2 pt) | 4 |
| Virulent phages (1pt) | are capable only lytic growth |
| What is false regarding bacteriophages (1pt) | Phage enter the recipient during transduction |
| In process which DNA is transferred from bacteria donor cell to recipent cell to cell contact is (1pt) | conjugation |
| Which is PAlindrome(1pt) | 5"CCCC"3 |
| If guanine makes 23% then thymaine makes? (1pt) | 27% |
| Which is not true regarding the structure of DNA (1pt) | Ionic bonds are the main force holding the strands together |
| Which is false about PCR (1pt) | PCR does not require knowledge of the DNA seqquence |
| In marsuplais in activited X chromosomes is always the one contrubte XY genotype (1pt) | Female marsupials express the X-linked genes inherited from the mother |
| a chromosomes in which linear order of a group of genes is the reverse (1pt) | inervsion |
| The calico pattern of coat colartion in female cats (1pt) | random X-chromsomes inactivation in different cells |
| If mature eukaryotic mrna.. Dna Coding . what do structure present (1pt) | introns |
Created by:
Laine.d
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