Arabidopsis irx4 mutants have a collapsed xylem phenotype. What process is likely to be defective in these mutants?
A. bulk flow
B. deposit of lignin
C. guttation
D. stomatal opening
Answer: B
Biology & Microbiology
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The genotype hsp+ HSP- is something that you could easily expect to find in the fungus Neurospora crassa
Indicate whether the statement is true or false
Biology & Microbiology
Vasectomy causes sterility because
a. sperm is no longer be produced. b. sperm no longer leave the testis. c. sperm no longer reach the vas deferens. d. sperm no longer reach the urethra. e. semen is no longer produced.
Biology & Microbiology
Organisms that get energy from the remains or products of organisms are ____________________. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
At rest, a cell has a ________ charge inside the plasma membrane and a ________ charge outside the plasma membrane
Fill in the blank with correct word.
Biology & Microbiology