Nucleic acids are composed of: O A. A phosphate group, a pentose sugar, a carboxylic acid
.
O B. A pentose sugar, a nitrogen base, an R group
.
O C. A nitrogen base, an amino group, a carboxylic acid
.
O D. A phosphate group, a pentose sugar, a nitrogen base

Could someone me with number one you

Question 3(multiple choice worth 4 points) (02.04 lc) which best describes the function of chloroplast? allows certa molecules to enter and exit the cell makes food during photosynthesis detoxifies waste products o packages proteins into vesicles

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.