All of the following statements about the brown algae are true except:a
this group includes the most complex algae that have blades, stipes, and holdfasts.
b. they share a common ancestor with representatives of the plant kingdom.
c. they represent the largest members of the algae called seaweeds.
d. they are harvested for algin, which is used in a variety of commercial products.
e. they are ecologically important as producers and in providing habitats along rocky
coastlines.
B
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Which of the following forces contribute to the stability of a DNA double helix?
A. hydrophobic interactions of bases in the same strand B. hydrogen bonding between bases in adjacent strands C. ionic interactions between the positively charged component of one base and the negatively charged component of the neighboring base D. hydrophobic interactions of bases in the same strand and hydrogen bonding between bases in adjacent strands E. hydrophobic interactions of bases in the same strand, hydrogen bonding between bases in adjacent strandsand ionic interactions between the positively charged component of one base and the negatively charged component of the neighboring base
DNA repair enzymes typically find mismatched base pairs by scanning for ____
a. missing hydrogen bonds b. unsealed nicks in the DNA strands c. Okazaki fragments d. extra hydrogen bonds e. distortions in the DNA double helix
what does HBV cause?
What will be an ideal response?
Which of the following bacteria does NOT belong with the others?
A) Halobacterium B) Halococcus C) Methanobacterium D) Staphylococcus E) Sulfolobus