Answer the following questions true (T) or false (F)
1. Phenols are commonly used in hospitals to sterilize critical equipment.
2. Catabolic reactions are hydrolytic and exergonic while anabolic reactions are biosynthetic and endergonic.
3. Ribozymes are enzymes which are made of protein but only work on RNA molecules as substrates.
1. FALSE
2. TRUE
3. FALSE
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The results of an experiment on genetic drift on Drosophila melanogaster are illustrated in the accompanying figure. These data show ________
A) the loss of heterozygosity in the population over time B) the fixation of alleles in the population over time C) the permanent loss of alleles from the population over time D) All of the above are accurate. E) None of the above is accurate.
Indeterminate cleavage takes place in ____ and is characterized by a pattern of development where the ultimate fate of
each cell is ____. a. deuterostomes; not fixed until late in the developmental process b. protostomes; not fixed until late in the developmental process c. deuterostomes; fixed early in the developmental process d. protostomes; fixed early in the developmental process e. coelomates; fixed early in the developmental process
Which of these carries the most energy?
a. ADP b. ATP c. NADH d. NAD+
Leydig cells ________
a. secrete testosterone b. activate the sperm flagellum c. support spermatogenesis d. secrete seminal fluid