Artificial Selection is a form of selection in which humans actively choose which traits should be passed onto offspring. Humans have used selective breeding long before Darwin's Postulates and the discovery of genetics. Farmers chose cattle with beneficial traits such as larger size or producing more milk, and made them breed; and although they may have known nothing about genes, they knew that the beneficial traits could be heritable. The farmers selected for certain traits in their cattle and probably noticed that the offspring were becoming more and more productive with each generation. Scientists study these traits and spend a lot of time calculating how heritable these traits can be. The more these traits are expressed in the offspring (i.e. size, milk production, etc), the more heritable these traits are said to be. Hunting is also a form of artificial selection, with the genes that humans "want" (i.e. - the biggest buck with the most points, the largest fish, etc.) being removed from the gene pool, allowing the less "wanted" genes to pass on to the next generation by increasing their odds of mating when compared to the hunted specimens.
Hope this will help.
Answer:
It is associated with a sliding clamp only on the leading strand.
Explanation:
DNA polymerase must exhibit higher processivity for an efficient DNA replication process. The processivity is imparted by some specific subunits such as the beta subunit of DNA polymerase III. These subunits form a sliding clamp to allow the DNA polymerase to add a large number of nucleotides to the primer before detaching from the template.
Four copies of beta subunits of DNA polymerase III form a donuts shaped structure around each template strand of DNA and serve as a clamp. Each pair of beta subunits associated with core DNA polymerase. The function of these sub-units is to slide along DNA as replication processed. The sliding clamp does not allow the dissociation of DNA polymerase frequently and allows efficient replication of both leading and lagging strands.
Answer:
1.3
the..... are only found in animal cells
The right option is c. Satellite
Satellite is a device that can be used to make measurements globally. Satellites are devices that are launched into space and orbits around a body in space for different purposes. Satellites are made in different shapes and size and they have various pieces of instruments on them to carryout various functions while in space. Satellites can be launched to perform many purposes such as monitoring cloud patterns for a weather station, sending television signals across a country, and for monitoring the earth's atmosphere. Types of satellites include astronomy satellites such as the hubble space telescope, communication satellites and navigation satellites.
An organisms role is important for the community because they help us to have food & to keep us alive
