The water-soluble portion of a phospholipid is the polar head, which generally consists of a glycerol molecule linked to a phosphate group.
a. true
b. false
Ans: a. true
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Match the following items with the correct phrases.
_______1. Cold sores and shingles are examples. _______2. The same as a subclinical disease. _______3. A disease that has an insidious (slow) onset and lasts a long time. _______4. A disease that has spread throughout the body. _______5. A disease that has a sudden onset, but does not last long. a. acute disease b. asymptomatic disease c. chronic disease d. latent disease e. systemic disease
Do the two DNA double helices following DNA replication have the same, or a different, composition?
a. different b. same
Which statement about genetics is true?
A) Genes are proteins that produce DNA. B) DNA is made up of six different kinds of nucleotides. C) Differences among organisms reflect different nucleotide sequences in their DNA. D) Each DNA molecule is a single strand of nucleotides.
A DNA fragment with the sticky end sequence TGGCA will bind with another DNA fragment with the sticky end sequence ________.
A) TGCCA B) ACCGT C) TGGCA D) ACGGT