[{"id":225407,"question":"Lyell published the principle of.","choices":[{"text":"Population","value":"A"},{"text":"Community","value":"B"},{"text":"Geology","value":"C"},{"text":"Blome","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":225406,"question":"Who believed in the theory of special creation.","choices":[{"text":"Lamark","value":"A"},{"text":"Darwin","value":"B"},{"text":"Carolus Linnaeus","value":"C"},{"text":"Hyell","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":225405,"question":"The ultimate source of change is.","choices":[{"text":"Evolution","value":"A"},{"text":"Mutation","value":"B"},{"text":"Genetic drift","value":"C"},{"text":"Migration","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":178712,"question":"If the condon consisted of only two nucleotides, there would be how many possible condons?","choices":[{"text":"4","value":"A"},{"text":"8","value":"B"},{"text":"<sub>20</sub>","value":"C"},{"text":"16","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":178710,"question":"In Griffith experiment mice developed pneumonia when they were injected with:","choices":[{"text":"R-type bacteria","value":"A"},{"text":"Heat killed S-type bacteria","value":"B"},{"text":"Heat killed R-type bases","value":"C"},{"text":"Heat killed S-type becteria along with live R-type becteria","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":178709,"question":"In eukaryotic mRNA molecule there are 90 nucleotide involved in translation process. What is the number of amino acid in the protein formed by this mRNA molecules?","choices":[{"text":"29 Amino acids","value":"A"},{"text":"30 Amino acids","value":"B"},{"text":"45 Amico acids","value":"C"},{"text":"90 Amino acids","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":178708,"question":"If an mRNA is synthesized with the differnt codons, what is the minimum number of amino acids in the protein that is formed by the mRNA?","choices":[{"text":"64 Amino acids","value":"A"},{"text":"62 Amino acids","value":"B"},{"text":"60 Amino acids","value":"C"},{"text":"None of them","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":178705,"question":"If the amount of adenine in DNA of a bacterial cell is 36% of the total nitrogenous bases, what will be the amount of guanone in the DNA of a cell in next generations:","choices":[{"text":"14 %","value":"A"},{"text":"28 %","value":"B"},{"text":"36 %","value":"C"},{"text":"64 %","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":178703,"question":"In mitochodria UGA codon act to specify __________ instead stop codon:","choices":[{"text":"Argenine","value":"A"},{"text":"Valine","value":"B"},{"text":"Glumatic acid","value":"C"},{"text":"Trytophan","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":178701,"question":"Which one of the fllowing acts as a stop codon?","choices":[{"text":"UGG","value":"A"},{"text":"UGC","value":"B"},{"text":"UAG","value":"C"},{"text":"UGU","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178699,"question":"In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the :","choices":[{"text":"Top","value":"A"},{"text":"Bottom","value":"B"},{"text":"Intermediate","value":"C"},{"text":"Top &amp; intermediate","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178696,"question":"In hershey &amp; chase experiment, 32p labeled bacteriophages allowed to infect the becteria.During analysis 32 p activity wa detected:","choices":[{"text":"In culture medium","value":"A"},{"text":"On the surface of becterial cell","value":"B"},{"text":"Inside the becteiral cell","value":"C"},{"text":"Both a and B","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178695,"question":"A chromosome with unequal length of its arm is called:","choices":[{"text":"Metacantric","value":"A"},{"text":"Sub metacentric","value":"B"},{"text":"Acrocentric","value":"C"},{"text":"Telocentric","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2713,"question":"If all members of a population are homozygous for the same allele that allele is said to be","choices":[{"text":"Multiple allele","value":"A"},{"text":"Jumping gene","value":"B"},{"text":"Fixed in the gene","value":"C"},{"text":"Perfect gene","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2712,"question":"Armadillos the armoured mammals live only in the","choices":[{"text":"Africa","value":"A"},{"text":"America","value":"B"},{"text":"Europe","value":"C"},{"text":"Asia","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2711,"question":"In the eighteenth century organisms were classified by","choices":[{"text":"Charles Darwin","value":"A"},{"text":"Alfred Wallace","value":"B"},{"text":"Carolus Linnaeus","value":"C"},{"text":"J.B Lamarck","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2710,"question":"The most threatened areas on the earth have been reduced to 44% of their original extent are","choices":[{"text":"Tropical rain forests","value":"A"},{"text":"Temperate rain forests","value":"B"},{"text":"Carbiniferous forests","value":"C"},{"text":"Deciduous rain forests","value":"D"},{"value":"E"}],"correctAnswer":1}]