What structure hold the DNA copies together?
A. Centrosomes
B. histones
C. spindle fibers
D. TSG's
Answer: A. Centrosomes
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In Drosophila, the hunchback gene encodes a protein (HB) that has a role in the development of the thorax. In the zygote and embryo, the expression of hunchback is stimulated by high concentrations of Bicoid protein. Which of the following is accurate about the expression of hunchback in the Drosophila embryo?
A. The HB protein is produced throughout the embryo. B. The HB protein is produced only in the anterior half of the embryo. C. The HB protein is produced only in the posterior half of the embryo. D. The HB protein is produced in the middle of the embryo; but is not produced in the anterior or posterior end. E. No HB protein is produced in the embryo.
Which amino acid has been implicated in the formation of artery-blocking plaques?
a. isoleucine b. threonine c. homocysteine d. valine e. phenylalanine
Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating
a. true b. false
This protein or protein complex functions in the cell to stop cell division if the cell has experienced extensive DNA damage:
A. p53 B. condensin C. FtsZ D. APC/C