Most immunologic diseases that exhibit familial tendencies:
A) are caused by immunosuppression.
B) involve an overactive immune system.
C) are outgrown by the age of 25 years.
D) are caused by immune system hypoactivity.
Answer: B) involve an overactive immune system.
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Pressure increases one atmosphere every ________ meters in the ocean
a. 100 b. 10 c. 30 d. 3
You are excited because your lab is studying the first microorganisms retrieved from Mars! Interestingly, their genetic material consists of a single-stranded nucleic acid with six different nitrogenous bases. Like organisms from Earth, segments of the nucleic acid contain the code for making proteins. If the genetic code in these organisms was read in groups of 2 bases instead of 3, what is the maximum number of amino acids that could be coded for assuming that only one codon functioned as a stop codon? (Enter your answer as a numeral not a word, e.g. enter 17 not seventeen.)
Fill in the blank(s) with the appropriate word(s).
The chemical components of ribosomes are proteins and ________.
What will be an ideal response?
Robby has type B positive blood. His blood will contain
A. A but no Rh antigens, and anti-B antibodies. B. B and Rh antigens, and no antibodies. C. B but no Rh antigens, and anti-A antibodies. D. B and Rh antigens, and anti-A antibodies. E. A and Rh antigens, and anti-B antibodies.