A mixture is made from two or more substances that are different and are not joined. A compound is a substance formed when two or more elements react with each other to form chemical bonds between their atoms
1. The answer depends on your picture.
DNA is packed and condensed with proteins in the form of chromosomes.
Since the process of division is going to start that means each chromosome will have an X shape. They had the DNA content copied once (in the S phase). The original, plus the copy created, form the X.
You just have to count the number of X's in the picture.
2. The answer is 4 nuclei.
Since the process of division happening is meiosis, that means that four new cells will be originated from a cell that's dividing.
So, four new cells each one with a nucleus, that means 4 nuclei in total.
If this was mitosis, only 2 new cells would be formed which means 2 nuclei
3. The number of chromosomes depends on your picture/exercise.
The answer would be half of the number of chromosomes that you started in the meiosis 1.
This time, chromosomes won't have an X shape since the copies were separated. At the end of the process, each chromosome has just one chromatid.
Answer:
C.pollen contains the sperm cell
Answer:
The influenza virus has a negative sense RNA genome. In order to replicate, this means that the virus must first produce positive sense mRNA in order to produce necessary enzymes. Once the enzymes are translated, replication can take place. Positive sense cRNA is then made from the original negative sense RNA, using the enzymes. Negative sense RNA progeny are then made from the positive sense cRNA. The final viral progeny eventually bud from the host cell, ready to infect other cells.
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Answer:
early ventricular systole
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