Answer:
Test a known bloodstain as a positive control and a blank (filter paper) as a negative control (see interpretation of results to determine a positive and negative result).
Answer:
The correct option is : c. the lungs
Explanation:
The heart is a muscular organ which is divided into four chambers in the humans, birds and other mammals. The four chambers of the heart are: right ventricle, left ventricle, right atria, left atria.
The right ventricle of the heart receives the deoxygenated blood from right atrium and then sends the deoxygenated blood to the lungs, through the pulmonary valve and arteries.
RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein. Transcription is the first part of the central dogma of molecular biology: DNA → RNA. It is the transfer of genetic instructions in DNA to messenger RNA (mRNA).
Answer:
The structure your are referring to is showing the virus's genome.
Explanation:
Viruses can be described as a tiny agent which multiplies inside a host cell and is usually harmful for the host cell.
The genome of a virus might be in the form of DNA or RNA. In the figure you might be referring to, there are two strands of genome present so we can say that the virus has DNA as genome. All life of life forms, from bacteria to animals and plants can be infected by viruses.
Explanation:
Energy is radiated from the sun, through the vacuum of space at the speed of light. When this energy arrives at Earth, some of it is transferred to the gases in our atmosphere.