Amino acids in a polypeptide are part of
a. the primary structure.
b. carbohydrates.
c. lipids.
d. nucleic acids.
e. most macromolecules.
Answer: a
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Describe the hypothesis of viruses occurring before living cells and how DNA might have evolved. What is the current hypothesis about the evolutionary relationships between RNA, DNA, viruses, and cellular life?
What will be an ideal response?
Where is the centromere found?
a. position where metaphase chromosomes align b. location where the mitotic spindle forms
c. central region of a chromosome where the spindle microtubules attach d. location where chromosomes cluster during telophase e. center of the cell where the nucleus is found during prophase
Which of the following does not occur during PCR?
A) Denaturation at high temperatures B) Synthesis of oligonucleotide primers C) Annealing of oligonucleotide primers D) Extension of primers by DNA polymerase E) Changes in the reaction temperature by a thermocycler
Used to build complex organic compounds from simpler compounds; also known as biosynthetic reactions; chemical bonds are created; energy is required