A phenotypically normal prospective couple seeks genetic counseling because the man knows that he has a translocation of a portion of his chromosome 4 that has been exchanged with a portion of his chromosome 12. Although he is normal because his translocation is balanced, he and his wife want to know the probability that his sperm will be abnormal. What is your prognosis regarding his sperm?
A) 1/4 will be normal, 1/4 will have the translocation, and 1/2 will have duplications and deletions.
B) All will carry the same translocation as the father.
C) None will carry the translocation since abnormal sperm will die.
D) His sperm will be sterile and the couple might consider adoption.
E) 1/2 will be normal and the rest will have the father's translocation.
(A) Tetralogy of Fallot; (B) normal anatomy.
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round
Genetic Vulnerability to Schizophrenia
Distribution of dystrophin in muscle cells. (a) In normal muscle cells, all the dystrophin is locate
The obese (ob) mouse mutant, shown on the left (a normal mouse is on the right), has provided many c
Production of prototrophs as a result of genetic recombination