"Nor is there singing school but studying / Monuments of its own magnificence..." read the great poets, study the works of the masters, and learn.... oh, and write, yes write...
C, heterozygous for one trait, since in the first filial 1/4 of offspring are genotypically homozygous dominant, 1/4 homozygous recessive, and the other 1/2 heterzygous, so 3/4 contain at least one copy of the dominant allele and hence are phenotypically dominant and the other 1/4 display the...
DNA is the molecule of which chromosomes are composed and chromosomes are the discrete 'packages' into which DNA is separated. There are 23 pairs of chromosomes in a human somatic cell, and each of those 46 chromosomes is made of DNA.