For the genetic cross Aa Aa, 3:1 is the:
What will be an ideal response?
phenotypic ratio for the offspring if inheritance was by complete dominance.
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When Shakespeare wrote about the world as a stage
and each of us being players, he was unknowingly referring to the biological concept of a. succession. b. the niche. c. different habitats. d. feeding levels. e. interspecific competition.
Pseudostratified epithelium is found
A. in the nervous tissue. B. lining parts of the respiratory tract. C. in the glands. D. on the skin. E. in the liver.
The translation of an mRNA begins at the start codon. What is the sequence of this codon?
a. AUG b. UGG c. AGU d. UAG
Which one of the following is a characteristic of the adaptive immune system?
A. it acts immediately or within hours of appropriate stimulus B. it involves granulocytes (myeloid white blood cells) C. its response is enhanced on repeated exposure to antigen/pathogen D. it involves one type of large, granular lymphocytes also known as natural killer cells E. it involves macrophages