During DNA replication,
A) the DNA double helix comes apart where hydrogen bonds join base pairs, and new
nucleotides are brought in, forming two double helices.
B) two single strands of DNA come together, restoring complementary base pairing.
C) amino acids are joined.
D) tRNAs bring specific amino acids to an mRNA molecule.
A
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Amniocentesis is the removal of a sample of amniotic fluid for diagnosis of genetic or chromosomal disorders of the fetus.
Answer the following statement true (T) or false (F)
Our taste buds are most receptive to which of the following types of compounds?
A) sweet B) salty C) sweet and salty D) bitter E) umami
Which of the following has no effect on blood pressure?
A. Aldosterone B. Atrial natriuretic peptide C. Angiotensin II D. Erythropoietin E. Antidiuretic hormone
Reabsorption of chloride is
a. active b. passive c. dependent on the amount of sodium reabsorbed d. both a and c e. both b and c