Which of the following is diagnostic for systemic lupus erythematosus?
A.) Anti-Sm antibody
B.) Anti-myelin basic protein antibody
C.) Anti-insulin antibody
D.) Anti-EB antibody
Ans: A.) Anti-Sm antibody
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What key assumption of the endosymbiotic theory is observed in living animals?
What will be an ideal response?
Gymnosperms (such as conifers) and angiosperms (such as lilies) differ in that only the angiosperms have
a. lignified transport tissues. b. leaves. c. seeds. d. fruits. e. swimming sperm.
Animals of the phylum ____ are likely to have an exoskeleton
a. Mollusca b. Arthropoda c. Nematoda d. Chordata e. Annelida
Current analysis indicates that less than 2% of the human genome codes for proteins
Based on the systems approach employed by the ENCODE project, what percentage of the genome is estimated to contain functional elements (includes functional RNAs and regulatory sequences)? A) Less than 2% B) About 50% C) At least 80% D) 100%