Which macromolecule is the main component of cell membranes

Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?