What makes a water molecule polar?
What will be an ideal response?
slight charge on each end
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Fossils are predominantly found in ____
a. metamorphic rocks b. igneous rocks c. sedimentary rocks d. crystalline rocks e. radioactive rocks
How many nucleotides in the human genome
sequence change every decade?
a. 40 b. 50 c. 60 d. 70 e. 80
Identify the correct sequence of events that occur during the reproduction of HIV.
A. virus attaches to a host cell - the virus enters the cell - viral DNA is incorporated into the host DNA - reverse transcriptase occurs - viral / host DNA is turned into a viral mRNA code - the viral RNA forms into a mature virus - mature viruses leave the host cell B. virus attaches to a host cell - the virus enters the cell - viral DNA is incorporated into the host DNA - reverse transcriptase occurs - the viral RNA forms into a mature virus - viral / host DNA is turned into a viral mRNA code - mature viruses leave the host cell C. virus attaches to a host cell - the virus enters the cell - reverse transcriptase occurs - viral DNA is incorporated into the host DNA - viral / host DNA is turned into a viral mRNA code - the viral RNA forms into a mature virus - mature viruses leave the host cell D. virus attaches to a host cell - the virus enters the cell - viral / host DNA is turned into a viral mRNA code - viral DNA is incorporated into the host DNA - reverse transcriptase occurs - the viral RNA forms into a mature virus - mature viruses leave the host cell
To make all subjects think they are receiving the same treatment, patients in the control group can receive a placebo.
Answer the following statement true (T) or false (F)