DNA telomerase adds a tail to the DNA strand at the end of replication. Thus, the correct option is C.
<h3>What is DNA replication?</h3>
DNA replication may be defined as a biological process in which the genome's DNA is duplicated in cells. It is completed in three steps, i.e. initiation, elongation, and termination.
DNA telomerase is an essential enzyme in DNA replication that augments the ends by duplicating the RNA template and extending one end of the chromosome.
Therefore, the correct option for this question is C.
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Answer: The scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Explanation-
As per the information given in the question, a mice having mutation in ear depicts same pattern of resistance when compared to another mice having normal ears. This indicates that the genes responsible for resistance are not related to genes that result in ear formation.
Therefore, to find out the effect of diet on disease resistance in rats, the scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Carbon Dioxide contributes the most to the greenhouse effect
human skin cell, bacteria, virus, yeast
Explanation:
Phoresy is the name of the symbiotic ecological relationship where one organism attach to the other (Option B).
<h3>What is Phoresy?</h3>
Phoresy is an ecological relationship where a given biological organism travels on the body of another organism.
The life forms in this type of ecological symbiotic relationship (phoresy) are not parasitic type.
In conclusion, phoresy is the name of the form of symbiotic ecological relationship above described.
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