Answer:
In an ancestral elm species, mutations gave rise to the phenotypic trait "winged-seeds". Subsequently, selection favored elm plants with winged-seeds that diverged over time to become a separate species
Explanation:
A mutation is a genetic change in the DNA sequence. In general, mutations have a negative impact on the fitness of the individual (i.e., mutations are generally deleterious) and therefore they disappear from the population. However, there are situations where mutations are beneficial and confer an adaptive advantage, thereby increasing their frequency in the population. In this case, mutations associated with the formation of winged-seeds conferred an adaptive advantage (i.e., higher seed dispersal capacity) to individuals who had this phenotypic trait, thereby these individuals had more chances to reproduce and pass their genes to the next generation. Eventually, Elm plants with winged-seeds accumulated sufficient genetic differences to prevent interbreeding, leading to the formation of a separate species.
One 0 because it only say 2
Answer:
desirable traits are passed down into future generations
Explanation:
A hazy cloud called a coma surrounds the nucleus. The coma and the nucleus together form the comet's head.
Answer:
The biologist should have a look at the structure of the protein. Since all functions are largely dependent on the structure of the protein (another way to look at it would be that proteins are specialized to carry out their functions because of how they are structured), this is determined by the amino acid sequence of the protein. And the sequence of amino acids is given by the DNA sequence, so that is what the biologist should look at.
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