Strand discrimination during the process of DNA repair is based on DNA methylation in E. coli
Indicate whether the statement is true or false
TRUE
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Which of the following reflects a primary difference between transmission and scanning electron microscopy?
A. Transmission electron microscopy has high resolution, but scanning electron microscopy does not. B. Transmission electron microscopy shows contrast, but scanning electron microscopy does not. C. Transmission electron microscopy has much higher magnification than scanning electron microscopy. D. Transmission electron microscopy shows two-dimensional ultrastructure, while the scanning electron microscopy shows three-dimensional structure. E. Transmission electron microscopy uses light as an illumination source, while scanning electron microscopy uses electron beams as an illumination source.
Movement of IAA in a shoot tip is as follows: ____
a. IAA initially moves downward from the shoot tip via polar transport. b. IAA initially moves laterally from the shaded to illuminated side of the shoot tip. c. IAA initially moves laterally from the illuminated to shaded side of the shoot tip. d. IAA initially moves laterally in the shoot tip via non-polar transport. e. IAA moves from root tips upwards towards leaves.
The ________ is a fibrous sac that holds the heart in the center of the chest cavity without hampering its movements, even when the heart is contracting vigorously
Fill in the blank(s) with correct word
Arabidopsis thaliana has homologous gene clusters to the Hox genes found in Drosophila. What are these master regulatory clusters called?
A) MRCs B) MADS-box proteins C) CURLY LEAF genes D) Hox genes