Legume plants with reduced amounts of leghemoglobin would be expected to:
A. be unable to form a nodule.
B. fix more nitrogen than normal legume plants.
C. fix less nitrogen than normal legume plants.
D. be unable to form a symbiosis.
C. fix less nitrogen than normal legume plants.
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If a particular noncoding sequence is repeated 100-10,000 copies per genome, this is considered ________ repetitive DNA
A. highly B. moderately C. low D. All of the answer options are correct. E. None of the answer options is correct.
Which of the following substances helps make cells of xylem rigid to avoid collapse?
A. cellulose B. lignin C. chitin D. spongin E. parenchyma
In the 1990s, the ______________ paved the way to successful whole-genome shotgun sequencing
A. availability of physical genome maps B. integration of cloud computing C. improvement in computer hardware and software D. discovery of reverse transcriptase E. utilization of ribozymes
Which component distributes water and nutrients throughout the plant body?
a. ground tissue
b. vascular tissue
c. dermal tissue
d. root
e. shoot