Answer:
The correct answer is - Histones are positively charged.
Explanation:
Histone is an octamer that is made up of four proteins and each protein has 2 copies. These proteins are H2A, H2B, H3, and H4. Histone proteins are mainly made up of positively charged amino acids like arginine and lysine which gives histone proteins an overall positive charge.
This positive charge of histone plays important role in the binding of DNA around it because phosphate group present in the DNA makes DNA negatively charged molecules that are attracted by positively charged histone protein by electrostatic interaction.
This interaction results in the wrapping of DNA around the histone proteins and then compaction of DNA into chromatin. Therefore the right answer is- histones are positively charged.
Answer:
If the chimpanzee’s zygote has 48 chromosomes, one would expect to find 24 chromosomes in a chimpanzee’s egg.
Explanation:
In a living organism, somatic cells are diploid and possess the full chromosome load, while gametes -sex cells- possess half of the total chromosomes, they are haploid.
The zygote of any organism that reproduces sexually results from the union of a male gamete and a female gamete, so its chromosome load is complete.
<em>This means that if the chimpanzee has 48 chromosomes in its cells, the female sex cell - the egg - has 24 chromosomes.</em>
Learn more:
Haploid and diploid brainly.com/question/7212380
Aids is one of the disease that damage little by little the immune system until the human body die.
Answer:
For Biosphere 2 to meet its goal, it was necessary to replicate a variety of climates. The original goal was to provide a successful model for human space colonies, and with this goal in mind, scientists and engineers built prototypes of several environments that can replicate the real-life climates (in order to see how the complex processes work). This provides a viable ecological system in outer space. In the model, there are different climates used to see how different factors of the Earth affect each other.
Explanation:
- This answer was formed with help from Slader.
I cook for my family every day, on my way back home, I phone my family to see what kind of food is in the fridge, so I can go shopping in the market. I take the car via the market home and start at the back of the market and get all of the fresh vegetables I need to cook a pasta dish, I specialize each area of the market to optimize my time, and get better prices for the produce. I ask someone to help me carry my shopping to the car, and phone home to ask my wife to turn on the oven, and start to boil water. Once home I chop the vegetable and cook the pasta, and we sit down for dinner.
