In cats the X chromosome carries the gene for coat colour. The allele for yellow coat (J) is dominant over the allele for black coat (j).  A cross between a yellow male and a black female produces three male kittens. What colour are the kittens? How do you know?

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

What do we call the process when two dominant alleles are expressed and do not blend? a.incomplete dominance b.codominance c.multiple alleles

Bio molecules are essential to all living things. which biomolecule is “d” from the table