Women capable of becoming pregnant are often deficient in which vitamin? folate vitamin b6 vitamin c vitamin d

Which nucleotide component contains nitrogen

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.

The wind is to parities grasses because it them