What happens to the uterine lining between say 27-1? what is the process called?

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

Because water is a polar molecule it makes an excellent solvent for atoms and compounds found within cell and tissue. water acting as a solvent in organisms, aids in all of the following except

Which one of the following is true of trnas? a) trnas are double-stranded. b) each trna binds a particular amino acid. c) there are four types of trna. d) trnas carry special sequences known as codons. e) all of the above