A point mutation is a change in a single base pair in DNA. A change in a single nitrogenous base can change the entire structure of a protein because a change in a single aminâ¦o acid can affect the shape of the protein. A frameshift mutation is a mutation in which a single base is added or deleted from DNA.
how are spores structurely different from seeds of plants. Spores are single cells with a haploid genome that have very little stored nutrients and water. They divide and grow to become a gametophyte. Spores are equivalent to pollen (the male, 2 celled gametophyte) rather than seeds.eeds are sporophytes. They are large & multicellular with a diploid genome formed from the merger of two gametes and endosperm formed from the merger of the central cell and a male sperm nuclei making it triploid. Seeds have a growth period before they go dormant for release.
Spores are the reproductive cells for fungi and ferns. They are small and light weight so that they can easily be carried by the wind. In, a spore is a reproductive structure â¦ that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions.A chief difference between spores and seeds as is that spores have very little stored food resources compared with seeds.ngiosperms are  also called anthophytes or magnoliophytes.    The sporophyte is dominant and the gametophyte is the most reduced  of all plants. There are 300 000 so far named angiosperms.  Angiosperms evolved in the Cretaceous. Many have close-bound  mutualisms with pollinating insects.