★ Skin Structure, Growth, & Nutrition Quiz
What is a fibrous protein that is the principal component of hair and nails?
A. collagen
B. keratin
C. elastin
D. dermal papillae
Select your answer:

Topics:
Biodiversity Parts of Human Body The Cell Cycle Eyes and Hearing Vocabulary - Health Healthcare Systems and Settings Benefits of Physical Activity Respiratory Diseases DNA & Types of Reproduction The Cell Cycle & Cancer Food and Nutrition Cosmetology Anatomy Digestion Knee Anatomy Bacteria, Viruses, Protozoa FungiOther quiz:
General Anatomy › ViewThe bones developed by ossification of hyaline cartilage by intra-cartilaginous ossification is a membranous bone
A. TRUE
B. FALSE
Human Genome and Bioethics Review › View
Chromosomal disorders, such as Down Syndrome, are caused by __________, or the failure of homologous chromosome separation during meiosis, occurs.
A. Nondisjunction
B. Recessive Alleles
C. Dominant Alleles
D. Codominance