Imagine a pedigree that traces an inherited disorder found in individuals with two recessive alleles for gene d. the pedigree shows three siblings with genotypes dd, dd, and dd. did the parents of these three children have the disorder?

the answer is b)3/8x+1

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers