all the cells have identical DNA
Almost all cells have the same DNA. (e.g. red blood cells don't have DNA, except during early life) They are alive.
The DNA in prokaryotic cells is circular, while the DNA in eukaryotic cells is linear.
DNA gives instructions on how to make and operate all parts of our bodies, which then allows the cells to perform special functions like:hemoglobin and pigmentation andcaroteneboth from the genes that DNA creates.
False. Eukaryotic cells generally contain more DNA than prokaryotic cells. Eukaryotic cells have their DNA enclosed within a nucleus, whereas prokaryotic cells have their DNA located in the cytoplasm.
Yes, prokaryotic cells have circular DNA.
Correct
Almost all cells have the same DNA. (e.g. red blood cells don't have DNA, except during early life) They are alive.
The majority of the cells have the same DNA is a true statement about the various types of cells found in an individual multicellular organism. Different genes are expressed in different cells is another true statement.
Chargaff's rules state that in a given DNA molecule, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of cytosine (C) is equal to the amount of guanine (G). This complementary pairing is crucial for the structure of DNA and its replication. Therefore, the correct statement would emphasize the equality of A and T as well as C and G in DNA.
If the DNA is in semen, it can live in the vagina for up to one week. If this is a question regarding DNA skin cells, they can be present in and on another person for quite some time.
Cells prevent mutations during DNA replication through several mechanisms. DNA polymerases have proofreading abilities, allowing them to identify and correct errors by removing incorrectly paired nucleotides. Additionally, other repair systems, such as mismatch repair, scan the DNA for errors after replication and correct them. These processes together help maintain the integrity of the genetic information.
The DNA in prokaryotic cells is circular, while the DNA in eukaryotic cells is linear.
The second statement would be more correct.
True. All cells must contain DNA at some point in their lives, as DNA carries the genetic information necessary for cellular functions and replication. Even cells that do not have a nucleus, like prokaryotes, still contain DNA in the form of plasmids or a single circular chromosome. Additionally, during the cell cycle, all cells undergo processes that involve the presence of DNA for growth and division.
In human cells, DNA is found in both the nucleus (in the form of chromatin) and mitochondria. In plant cells, DNA is found in both the nucleus (again, in chromatin),chloroplasts, and mitochondria. Fun fact regarding mitochondria; you inherit only your mother's mitochondria, and consequently, the same mitochondrial DNA. I hope this helps!
no. Cells have DNA not the other way around
DNA gives instructions on how to make and operate all parts of our bodies, which then allows the cells to perform special functions like:hemoglobin and pigmentation andcaroteneboth from the genes that DNA creates.