Which numbered item in the accompanying figure above represents microspores?
a. 1
b. 2
c. 3
d. 4
e. 5
ANSWER: a
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Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?
A) RNA polymerase B) phosphotransferase C) peptidyl transferase D) ribonuclease
Which of the following is NOT true concerning
nectar? It is a. sucrose-rich. b. a dilute fluid. c. the only food for most butterflies. d. rich in vitamins and minerals. e. easy for pollinators to sip.
_____________ directly increases vasoconstriction.
A. Anti-diuretic hormone (ADH) B. Aldosterone C. Atrial natriuretic hormone D. Angiotensin II
A chemical is reported to inhibit bacterial replication. Bacterial cells are placed in medium with all nutrients necessary for replication. The chemical is added to the culture, and after a half hour an extract of the DNA is prepared. A significant percentage of the DNA is in pieces about 1000 to 2000 bases in length. The results are consistent with the chemical blocking the function of DNA ligase.
Answer the following statement true (T) or false (F)