Which of the Following Statements About the Offspring of a Cross

Multiple Choice

Which of the following statements about the offspring of a cross between two carriers of a lethal recessive gene are true? Please select all that apply.

A) 50% of live offspring display the heterozygous phenotype
B) The genotypes of the offspring follow the same Mendelian patterns as for crosses not involving lethal genes
C) Where the wild-type gene is dominant, all surviving offspring have the same phenotype
D) Offspring genotypes follow a 2:1 ratio