Answer: 320 phosphate groups.
<u>Each nucleotide of DNA contains one phosphate group attached to it</u>.Therefore if there <u>were 160 nucleotides in a strand;,definitely each nucleotide of the strand must contain one phosphate group, therefore 160 phosphate groups. must be present.</u>
However, a DNA molecule must contain double strands, therefore 160 multiplied by 2 should give 320 phosphate groups in the alien DNA.
Explanation:
The two species of birds can coexist successfully as they can not out compete each other on food resources as they both consume different species<span />
can you possibly provide the passage because without it i cant really answer sorry i wasn't much help
