All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
Answer: 47 Chromosomes
Explanation: People with Down syndrome typically have three copies of chromosome 21 in each cell, for a total of 47 chromosomes per cell.
A virus is basically a shell of DNA. It floats around until it finds a cell to latch onto. It then tricks the cell into absorbing the virus and the virus unleashes the DNA its carrying telling the cell to quit doing its job, and make more of the virus. <span />
Answer:
The Gram-negative diplococci <u>Neisseria </u>are pathogenic microbes that infect mammalian mucous membranes, and include the species which causes gonorrhea.
Explanation:
Options for this question are:
- <em>Streptococcus
.</em>
- <em>Coxiella
.</em>
- <em>Neisseria
.</em>
- <em>Listeria
.</em>
- <em>Haemophilus.</em>
Bacteria of the genus Neisseria are Gram-negative, with a rounded morphology that are associated in pairs, so they are called diplococci. They are aerobic microorganisms, no more than 1 micrometer in diameter, immobile and not sporulated.
Their biological importance is due to the fact that they cause diseases in humans, such as bacterial meningitis -caused by N. meningitidis- or gonorrhea, associated with N. gonorrhoeae.
Learn more:
Germ theory of disease brainly.com/question/818392
Enzymes.
They lower the activation energy (amount needed to start a reaction) and increases the reaction rate.
