What is meant by dosage compensation?

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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.

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

The cauliflower-like growths on the genitalia called condylomata acuminata are caused by (herpesviruses/papillomaviruses/parvoviruses)

What will be an ideal response?

Biology & Microbiology