Which layer of the epidermis contains the greatest concentration of keratin?
a. stratum granulosum
b. stratum corneum
c. stratum basale
d. stratum spinosum
Ans: b. stratum corneum
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Mendelian inheritance specifies that if two heterozygous individuals mate, the chances that a child would be homozygous for the recessive allele would be
A. 25%. B. 50%. C. 75%. D. impossible to predict.
Which condition is caused by roundworm infection and characterized by a dramatic accumulation of fluid, especially in the extremities?
A. Sickle cell disease B. Elephantiasis C. Lymphadenopathy D. Lymphadenitis E. Lymphoma
Which of the following enzymes has the function of synthesizing dna during dna replication?
a. transferase b. restriction enzymes c. reverse transcriptase d. DNA polymerase e. DNA ligase
The small intestinal epithelium actively secretes digestive enzymes into the intestinal lumen
Indicate whether the statement is true or false