Question

true or false:
the number of phosphates determine the traits of an organism
the sequence of nitrogen bases hold an organisms genetic info
the DNA of all organisms on earth contain the same 4 nitrogen bases
all organisms on earth have DNA protected by a nucleus
the order of nucleotides in the DNA determines an organism's traits
DNA holds the instructions to build an organism's traits
The arrangement of base pairs in a genome lead to differences in organisms

Answer 1

1. False — the number of phosphates does not determine traits. Phosphate groups are part of the DNA backbone; traits are encoded by the sequence of bases, not by how many phosphates are present.

2. True — the sequence/order of nitrogenous bases (A, T, C, G in DNA) is what stores an organism’s genetic information.

3. Mostly true (with exceptions) — cellular life uses the same four DNA bases (A, T, C, G). Some viruses and phages have unusual or chemically modified bases.

4. False — only eukaryotes enclose DNA in a nucleus. Bacteria and archaea (prokaryotes) have DNA that is not inside a nucleus.

5. True — the order of nucleotides determines genes and regulatory information, which largely determine an organism’s traits (though expression is also affected by regulation and environment).

6. True — DNA contains the instructions to build and operate an organism, but how those instructions are used can be modified by regulation, epigenetics, and environment.

7. True — differences in the arrangement of base pairs (mutations, variants, structural changes) lead to differences between organisms.