Which of the following statement are incorrect? 

#Question id: 2963

#Unit 2. Cellular Organization

Eukaryotic chromosomes are composed of which of the following macromolecules?

#Question id: 15412

#Unit 8. Inheritance Biology

#Question id: 15194

#Unit 8. Inheritance Biology

 Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, c^a and c^k. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

would mate the true-breeding  c^a c^a  hamsters to the true-breeding c^k c^k  hamsters to produce heterozygous  c^a and c^k  F1 progeny,  the F1 progeny cack  hamsters self fertilized, From the fraction of F2 progeny that have the wild type black phenotype, 

#Question id: 9191

#Unit 9. Diversity of Life Forms

When an arborist prunes a limb off a valuable tree, he or she usually paints the cut surface. The primary purpose of the paint is to

#Question id: 16317

#Unit 7. System Physiology – Animal