All flea products also control ticks
a. true
b. false
.B
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What is the correct order of occurrence for the steps of protein synthesis? 1. mRNA is produced in nucleus. 2. Ribosome moves along mRNA. 3. DNA uncoils for transcription. 4. Polypeptide is produced. 5. tRNA brings amino acids to ribosome. 6. mRNA moves to ribosome
A) 3, 1, 6, 2, 5, 4 B) 2, 4, 6, 1, 3, 5 C) 2, 1, 5, 4, 3, 6 D) 3, 5, 1, 6, 2, 4 E) 1, 5, 3, 4, 2, 6
An individual's karyotype shows trisomy 21. This is an example of a
A) translocation. B) chromosomal abnormality. C) mutation. D) recombination error. E) teratogen.
Which of the following processes occurs during interphase?
A) Chromatid pairs separate. B) DNA replicates. C) A cleavage furrow forms. D) Chromatin condenses into chromosomes. E) The mitotic spindle forms.
The molecule HCl is an example of a(n)
A. base. B. nonelectrolyte. C. electrolyte.