Glucosylation of hydroxymethylcytosine residues protects phage T4 DNA from cleavage by bacterial restriction enzymes.
Answer the following statement true (T) or false (F)
True
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Which of the following statements about nucleotides is (are) true?
A) A nucleotide contains a nitrogenous base. B) A nucleotide contains a pentose. C) A nucleotide contains a phosphate group. D) All of the above statements are true.
The majority of the water in xylem sap typically ____
a. is used in capturing light energy b. becomes part of new plant cells c. is used to make sugars d. is stored in older plant cells e. evaporates into the air
All of the following are true EXCEPT one. Choose the exception
A) The great diversification of animals occurred during the Cambrian explosion. B) For most of biological history, life was confined to aquatic habitats. C) The evolution of multicellularity took place after the origin of the eukaryotes. D) The first organisms to colonize land were animals.
The passage of signals back and forth between different pathways is referred to as _________.
a) transvergence b) divergence c) convergence d) coherence e) crosstalk