X-rays cause mutations by: Cytogenetics Mcqs January 22, 2020 BILAL KHATTAK0 A.Altering the chromosome structure B.Routing the nuclear membrane C.Breaking the spindle D.Dissolving the nucleus Related Mcqs: During amitotic cell division in animals there is: True Nucleus is absent in bacteria because: An autosome means: In prokaryotic cell the nucleus has: Genetic mutations occur in: A radioactive substance gives off Y-rays when Cytoplasm in the cell is: Which of the following is the best explanation for earlier discovery of nucleus that the cell theory: Vacuoles are fluid filled sacs surrounded by a membrane called__________?? Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called_____________??