[{"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":178691,"question":"Inheritance of skin colour in man is controlled by eight pairs of genes , which are:","choices":[{"text":"Linked","value":"A"},{"text":"Codominent","value":"B"},{"text":"Multiple alleles","value":"C"},{"text":"Assorting independently","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178689,"question":"When expression of a biological character is observed in variable intensity, it is due to the efect of:","choices":[{"text":"Multiple alleles","value":"A"},{"text":"Codominance","value":"B"},{"text":"Epitasis","value":"C"},{"text":"Polygenic inheritance","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178687,"question":"What are the penotypes of the parent of a colour-blind son and non-carries daughter with normal colour vision?","choices":[{"text":"<b>FATHER              MOTHER</b><div><div>Carrier                 Normal</div></div>","value":"A"},{"text":"<b>FATHER              MOTHER</b><div>Colour blind            Carrier</div>","value":"B"},{"text":"<b>FATHER              MOTHER</b><div>Normal                Carrier</div>","value":"C"},{"text":"<b>FATHER              MOTHER</b><div>Normal               Colour- blind</div>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178683,"question":"Two parents, each of blood groups A, have a daughter of blood group O. what is the probality that their next child who has blood gorup O?","choices":[{"text":"0.125","value":"A"},{"text":"0.25","value":"B"},{"text":"0.50","value":"C"},{"text":"0.75","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178682,"question":"Awoman with normal colour vision, whose father was red-green colour blind, married a red-green colour-blind man. What is the probality of her first-born child being red-green colour blind?","choices":[{"text":"1.0","value":"A"},{"text":"0.75","value":"B"},{"text":"0.50","value":"C"},{"text":"0.025","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178680,"question":"How many different kinds of the gametes will be formed by an ndividual , who is hetrozygous for four gene pairs:","choices":[{"text":"8","value":"A"},{"text":"16","value":"B"},{"text":"20","value":"C"},{"text":"30","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":178678,"question":"A man bolld group A marries a women of blood goroup B and they have one child. Which one of the following statements abo ut the child's blood is correct?","choices":[{"text":"It could be group A only","value":"A"},{"text":"It could be group AB only","value":"B"},{"text":"It could be group A or Group B only","value":"C"},{"text":"It could be any of the groups A,B,AB, O","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":178677,"question":"The number of linkage group in man is:","choices":[{"text":"02","value":"A"},{"text":"23","value":"B"},{"text":"46","value":"C"},{"text":"92","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":178676,"question":"Chances for a son or daughter in human birth are:","choices":[{"text":"3:1 between son and daughter","value":"A"},{"text":"1:3 between son and daughter","value":"B"},{"text":"1:1 between son and daughter","value":"C"},{"text":"None of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178674,"question":"Bolld group B phenotype contains anti-A antiboides in the serum and agglutinates any RBC with antigen:","choices":[{"text":"AB","value":"A"},{"text":"O","value":"B"},{"text":"A","value":"C"},{"text":"B","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":178672,"question":"The most important hormone in initiating and maintaning lacation after birth is:","choices":[{"text":"Estrogen","value":"A"},{"text":"FSH","value":"B"},{"text":"Prolatin","value":"C"},{"text":"Oxytocin","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":178670,"question":"Identical twins result from the fertilization of:","choices":[{"text":"One ovum by the sperm","value":"A"},{"text":"One ovum by the two sperms","value":"B"},{"text":"Two ova by two sperms","value":"C"},{"text":"Two ova by one sperm","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":178668,"question":"The outer layer of the blastocyst, which laterattaches tothe uterus , is:","choices":[{"text":"Deciduas","value":"A"},{"text":"Trophoblast","value":"B"},{"text":"Ammion","value":"C"},{"text":"Inner cell mass","value":"D"},{"value":"E"}],"correctAnswer":2}]