What enzyme do retroviruses carry to create more DNA? a. transcriptase
b. transcription
c. forward transcriptase
d. reverse transcriptase

NO WRONG ANSWERS PLS

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

Look at the photo of the leaf. which term best describes this leaf?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.