The Trout are probably not used to the water and their surroundings.
Have cones as reproductive structures.
Have vascular tissue.
Answer:
b. forward mutation, suppressor mutation
Explanation:
When the nucleotide sequence of an organism is altered, it is called as mutation. It can be caused by DNA damage or replication errors. In forward mutation, the wild type allele is converted to a mutant version such that the gene product is non functional or its not produced at all. Suppressor mutation is the second mutation which reverses the phenotypic effects of the previous mutation. This process is called as synthetic rescue.
Since here gene X was converted into a mutant form by the mutation, it had undergone forward mutation. When gene Y was mutated, the function of gene X was restored which ultimately also restored the phenotype hence it is an example of suppressor mutation.
Spiral galaxies fall into several classes depending on their shape and the relative size of the bulge and elliptical galaxies are placed in the categories E0-7 depending on their degree of ellipticity. they are similar because t<span>hey have a uniform luminosity and are similar to the bulge in a </span>spiral galaxy<span>, but with no disk</span>
