How has our ability to send remote-controlled devices to planets such as Marsbest enhanced our understanding of the Universe?

It has made it possible for astronauts to visit distant planets in person

It has allowed us to visually explore distant planets without endangering anyone

It has permitted our exploration only to planets with atmospheres similar to ours

It has enabled us to collect soil samples from distant planets and bring them back to
Earth

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other