The ultimate explanation for resemblances of traits from one generation to another is
a. gamete formation.
b. semiconservative DNA replication.
c. sexual reproduction.
d. protein synthesis.
e. bloodlines.
B
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Which of the following statements is true regarding T cell receptors? Select all correct
A. They recognize antigen-MHC complexes. B. They contain variable and constant regions. C. They are composed of two heavy (H) chains and two light (L) chains. D. They are formed by the rearrangement of V, J, C, and D gene segments. E. They can be found in the bloodstream independent of T cells.
Before DNA, ____ likely served as the genetic material
a. RNA b. protein c. carbohydrate d. lipid e. free nucleotides
In humans, sex-linked means the gene is on what chromosome?
A. X B. Y C. Z
The transverse processes of vertebrae point ________, while the spinous process points ________.
Fill in the blank(s) with the appropriate word(s).