What is meant by dosage compensation?
What will be an ideal response?
In males, only one X chromosome is normally present. Normally, females have two, but one is inactive in each cell. Therefore, both males and females have only one active X per cell.
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What is occurring when a transport protein uses energy to pump a solute against its gradient across a cell membrane?
a. osmosis b. passive diffusion c. facilitated diffusion d. turgor e. active transport
As radiation strikes molecules in cells, it creates ____
a. charged atoms called isotopes b. charged atoms called ions c. excess storage of tRNA d. excess copies of mRNA e. excess DNA polymerase
Researchers hypothesize that the first self-replicating molecule may have been ____. This is known as the ______world hypothesis.
a. RNA, RNA b. DNA, RNA c. lipid, lipid d. protein, protein
The cauliflower-like growths on the genitalia called condylomata acuminata are caused by (herpesviruses/papillomaviruses/parvoviruses)
What will be an ideal response?