The bivalves and worms have red flesh due to presence of:
a. pigments absorbed from their prey items.
b. hemoglobin.
c. chromatophores.
d. pigments similar to other deep-sea organisms due to a lack of light.
e. structural colors for camouflage.
B
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Is a virus considered alive?
A. Yes, it possesses all of the requirements for life. B. Yes, it possesses enough of the requirements for life to be considered living. C. No, it does not possess any of the requirements for life. D. No, it does not possess all of the requirements for life.
Several strains of ________ cause genital warts and cervical cancer
A) human papillomavirus B) Neisseria gonorrhoeae C) Chlamydia trachomatis D) HIV
The C-terminal region of the herpes virus structural protein VP16 transcriptional activation domain was fused to the DNA-binding domain of LexA protein to create a VP16-LexA chimaera
The new gene encoding the VP16-LexA fusion protein was inserted into a plasmid and transferred to yeast, along with a plasmid that contained theGAL1 gene promoter fused to the bacterial ?-galactosidasegene, lacZ. This is experiment A. The new gene encoding the VP16-LexA fusion protein was inserted into a plasmid and transferred to yeast, along with a plasmid that contained theGAL1 gene promoter containing a LexA binding site fused to the bacterial ?-galactosidasegene, lacZ. This is experiment B. Which of the following graphs correctly show the expected levels of GAL1-lacZ fusion gene expression?
The preferred habitat of S. aureus is the
A. throat. B. urethra. C. bladder. D. nasal chamber.