Which of the following choices might occur due to a chromosomal translocation?

Which chromosome abnormality affects chromosome 21?

of human pregnancies are spontaneously aborted in the first three months of development. Of these, what percent of the unsuccessful pregnancies are due to chromosomal abnormalities?

In the human population, what is the chance that a baby is born with a chromosomal abnormality (due to aneuploidy, deletions, or translocations)?