In a mating between two individuals that are heterozygous fo…

In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotypic ratio (homozygous dominant:heterozygous:homozygous recessive) would you expect to observe in the offspring? 1:2:1 3:1:1 1:2:0 0:2:1