The answer would be A. a virus
The question states that the blood was filtered thru a porous material that prevented <u>all cells </u>from passing thru.
All of the options are cells except viruses.
Hope this helps:)
Answer:
hope this helps
Explanation:
About 95 percent of the time, Down syndrome is caused by trisomy 21 — the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.
- Yes, because biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, ...
Messenger and transfer RNA
Answer:
mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
