In order for a root to branch, new apical meristem must form from the ____ , a single layer of cells inside the endodermis of the root
Fill in the blank with the appropriate word.
pericycle
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In addition to causing skin cancer later in life, ultraviolet light destroys the B vitamin folate. Folate deficiencies in pregnancy may result in birth defects
Which of the following do you think is a stronger selective pressure for high skin pigmentation in high UV environments? A. skin cancer prevention B. birth defect prevention C. both are equal
Troponin is a complex of three polypeptide chains called ________, ________, and ________.
Fill in the blank(s) with the appropriate word(s).
The reporter gene most commonly used to monitor changes in the physical microenvironment for a single microorganism is the ________.
A. green fluorescence protein gene B. RecA protein gene C. beta-galactosidase gene D. luciferase gene
Which of the following is not involved in the initiation of replication?
A) ligase B) DNA gyrase C) single-stranded binding protein D) primase