Concerning HIV, which of these statements is false?
A) HIV is a retrovirus.
B) HIV can be cured today.
C) HIV must interact with a receptor on the host to infect it.
D) HIV utilizes the enzyme reverse transcriptase to copy its RNA to DNA.
B
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When is a bacterial cell more likely to be phagocytized?
A) when antibody binds antigen on its surface B) when compliment binds an antigen-antibody complex C) when antibody recognizes self antigens D) after antibody class-switching
Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.
Answer the following statement true (T) or false (F)
All organisms with circulatory systems have a heart
Indicate whether the statement is true or false.
Some researchers think H. floresiensis is a
more common early human with a genetic or nutritional disorder. What other early human was thought of this way when their fossils were first discovered? a. H. neanderthalensis b. H. erectus c. H. sapiens d. H. ergaster e. H. habilis