B because B is the nucleus which is the storage location of DNA
Answer: Monitor the site dressing and vital signs.
Explanation:
The bone marrow is the soft tissue inside bones that helps form blood cells. It is made up of a liquid part and a more solid part. And it is found in the hollow part of most bones. The bone marrow is
The biopsy and bone marrow aspiration are usually done at the same time. Together, these two procedures may be called a bone marrow study.
Marrow aspiration is the removal of a small amount of this tissue in liquid form for testing. Bone marrow biopsy and bone marrow aspiration are procedures that allow samples of bone marrow (the spongy tissue inside some of the longer bones) to be removed and tested. In a bone marrow biopsy, the doctor uses a needle to remove a sample of the solid part. In a bone marrow aspiration, a needle is used to remove a sample of the liquid part.
<u>Bone marrow aspiration and biopsy may indicate whether the bone marrow is healthy and producing normal amounts of blood cells</u>. Doctors use these procedures to diagnose and monitor blood and marrow diseases, such as some cancers and fevers of unknown origin. <u>After the procedure, it is important to control the wound so that it does not become infected, and to monitor vital signs.</u>
they must be unicellular and microscopic and they must be eukaryotic
Answer:
Some forms of chromatin modification can be passed on to future generation of cells
Acetylation of histone tails in chromatin allows access to DNA for transcription
DNA is not transcribed when packaged tightly in a condensed form
methylation of histone tails can promote condensation of the chromatin
Explanation:
chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.
Answer:
Pleiotropy
Explanation:
Pleiotropy is a genetic condition in which a single gene conditions the expression of multiple phenotype. There are different types of pleiotropy depending on the underlining mechanism
- <em>gene pleiotropy</em>
- <em>developmental pleiotropy</em>
- <em>selectional pleiotropy</em>
- <em>antagonistic pleiotropy </em>
<em>Phenylketonuria is a disease characterized by increased level of amino acid phenylalanine in the blood. It caused by mutation to the gene responsible for breaking down phenylalanine in the blood. Elevated level of phenylalanine causes other issues such as mental problems, urine coloration and reduction in skin pigmentation. This is a clear case of pleiotropy.</em>
