Hairs are mostly fibrous proteins and are composed of keratin, and also the main constituent of skin, nails, wool, woof, feathers etc.
Keratin is the essential fibrous protein which has a structural and protective functions in the epithelium.
One of the authors of the study, Mark C. Mescher, said that, “One of the interesting things we found was that the plants make choices.” Even more fascinating is the choice of their host plant made by the dodder is essential to their survival. A majority of the time, when given the choice, the dodder will choose a tomato plant over a wheat plant as its preferred host. This is most interesting because wheat plants are a poor host because they lack a plentiful variety of nutrients. It is harder for a dodder plant that is attached to a wheat plant to survive than it is for a dodder attached to a nutrient-rich tomato plant (5). So not only does a dodder plant have the ability to choose between a number of potential hosts, the majority of the time it will also choose the plant that will better its chances for survival.
Answer:
The term "retro" in retrovirus refers to this reversal of the usual direction of transcription.
Explanation:
Retroviruses are the viruses from the virus family known as retroviridae. These are the viruses that use RNA as their genetic material and use an enzyme reverse transcriptase which is essential for their life cycle.
they called retro as they use the reverse process of the usual direction of transcription which means from RNA to DNA by duplicated their genetic material to produce DNA and incorporated into the genome of the host.
C waning crescent and waxing crescent
The virus goes inside the cells nucleus and corrupt everything apart of it. The RNA in the virus gets forcefully put in the DNA lining so the virus can replicate millions of times. As that's happening, the nucleus takes action and replicates the virus then breaks down. Destroying the cell, the virus move on to its next cell.