Which of the following occurs for the production of a pollen grain from a microspore mother cell?
a. mitosis only
b. mitosis, then meiosis
c. mitosis, then meiosis, then mitosis
d. meiosis only
e. meiosis, then mitosis
E
Biology & Microbiology
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When a hormone inhibits its own expression, it is called a ____
a. hormone stimulant b. hormone coordinator c. hormone suppressant d. negative feedback loop e. positive feedback loop
Biology & Microbiology
contains hydrolytic enzymes
A. lysosome B. vacuole C. mitochondrion D. Golgi apparatus E. peroxisome
Biology & Microbiology
Which of the following is an early warning sign of colorectal cancer?
a. GERD b. celiac disease c. diarrhea d. colon polyps e. diverticulitis
Biology & Microbiology
The plasma membrane gets new lipids from:
a. The lumen of the ER. b. The lumen of the Golgi apparatus. c. Making new lipids at the plasma membrane. d. The nucleus. e. None of the above.
Biology & Microbiology