If nondisjunction occurs in an egg cell and the resulting egg is short a chromosome number 21, what will happen after fertilization?
1.The child will be born with Down’s syndrome.
2.The child will be born normal.
3.The zygote will not develop and will result in a miscarriage.
4.Fertilization cannot take place since there are not enough chromosomes.
3
You might also like to view...
Dinosaurs disappeared at the end of which period?
A. Cretaceous B. Permian C. Triassic D. Jurassic E. Cambrian
In lactation, milk production is stimulated by _______, while milk release is stimulated by ___________.
A. oxytocin, prolactin B. progesterone, oxytocin C. prolactin, oxytocin D. prostaglandin, oxytocin E. progesterone, prolactin
Which cell developmental process is likely to change the shape of the embryo without affecting size?
A. Cell proliferation B. Programmed cell death C. Cell movement or differential expansion D. Cell differentiation
Amino acids are delivered in their appropriate order by
A) mRNAs. B) RNA-induced silencing complexes (RISC). C) ribozymes. D) rRNAs. E) tRNAs.