Answer:
A point mutation is a type of genetic mutation where the single nucleotide base pair is changes.
There can be a single nucleotide base which is changed, deleted or inserted from a sequence of DNA or RNA.
The proteins produced may be faulty proteins. The consequences can be moderately predictable based on the specificity of the mutation.
Example: Cystic fibrosis, Sickle cell anemia and Tay-Sachs are some of the disease caused by point mutation.
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Answer:
Abiotic factors will Define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which Define if and how can an organism live in a specified environment. So, the abiotic factors are controlling the biotic factors of an environment.
Explanation:
<span>It is believed that the coelacanths and lungfish (lobed fin fishes) represent a crucial link between other fishes and tetrapods. The major feature to support the hypothesis is : </span>Their fins have skeletal and muscular structures similar to amphibian limbs.
