Which of these should have had gene sequences most similar to the charophyte that was the common ancestor of the land plants?
A) early angiosperms
B) early bryophytes
C) early gymnosperms
D) early lycophytes
E) early pterophytes
Ans: B) early bryophytes
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The addition of thioglycylate into a growth medium would NOT support the growth of a(n)
A) aerotolerant anaerobe. B) facultative aerobe. C) microaerophilic aerobe. D) obligate anaerobe.
Patent law as it pertains to biotechnology has had to change in recent years in response to
A) the changeable nature of the genetic code. B) the number of people asking for genetic tests. C) the increasing number of human genes. D) the greatly accelerated speed of DNA sequencing.
The sugar-phosphate backbone of the DNA is held together by hydrogen bonds
1.True 2.False
According to the figure, the alga produces the least
amount of oxygen at __________ nanometers. a. 680 b. 700 c. 400 d. 475 e. 550