Consider the following about Deoxyribonucleic acid (DNA).
1.All living things have DNA within their cells.
2.It contains all of the information necessary to build and maintain an organism
3.An important property of DNA is that it cannot replicate itself.
4.Whenever organisms reproduce, a portion of their DNA is passed along to their offspring.
Select the correct answer using the codes below.
Explanation:
Statement 1 and 2: DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is
located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Statement 3: DNA can replicate or make copies of itself.
Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.
Statement 4: However, DNA does more than specify the structure and function of living things — it also serves as the primary unit of heredity in organisms of all types. In other words, whenever organisms reproduce, a portion of their DNA is passed along to their offspring.
This transmission of all or part of an organism's DNA helps ensure a certain level of continuity from one generation to the next, while still allowing for slight changes that contribute to the diversity of life.