Answer the following questions true (T) or false (F)
1. The amount of energy required for a reaction to occur is its activation energy.
2. Accumulation of a metabolic pathway product may result in decreased activity of the pathway enzymes.
3. As the concentration of substrate increases, the activity of the enzyme decreases.
1. TRUE
2. TRUE
3. FALSE
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All DNA sequences are transcribed into RNA
A. true B. false
Which event can introduce a protein domain into a pre-existing protein?
a. gene alignment b. intron shuffling c. exon shuffling d. peptide shuffling e. exon splicing
Recombination involves the breakage and reunion of DNA molecules from
A) homologous nonsister chromatids. B) homologous sister chromatids. C) heterologous nonsister chromatids. D) heterologous sister chromatids.
The animals pictured here are
1.chelicerates
2.myriapods
3.crustaceans
4.arachnids