Abnormal fertilization or related processes that produce a zygote that has a 46,XX karyotype, in which both sets of chromosomes are of paternal origin, result in
A. placenta previa
B. placental abruption
C. placenta accreta
D. complete hydatidiform mole
E. partial hydatidiform mole
D
Androgenesis, an abnormal fertilization in which the maternal chromosomes are removed from the zygote and the paternal set (23,X) reduplicates to generate a 46, XpXp karyotype (in which Xp means of paternal origin) results in the formation of a complete hydatidiform mole. Partial moles have a 69,XXy or 69,XXX karyotype resulting from dispermy, i.e., fertilization of the ovum with two sperms.
You might also like to view...
What percentage of the world's people live in countries where abortion is permitted either without restriction or, more commonly, for a wide range of reasons but with certain restrictions?
A. 10 percent B. 25 percent C. 50 percent D. 60 percent
What is sarcopenia, what are its side-effects, and how is it related to aging?
What will be an ideal response?
Risk factors cause mental and emotional disorders in children.
Answer the following statement true (T) or false (F)
Which of the following is NOT a priority area for the National Center for Injury Prevention and Control?
A. poisoning B. alcohol-impaired drivers C. drowning D. playground injuries