Answer:
it would help the world food supply by putting more crops in store and for people in need
Explanation:
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.
This is how I would remember it:
Think of a train with two stops. It stops at the parent stop, loads the genetic traits in the caboose, then transmits them to the next stop, the offspring. The train chugs along between parent and offspring, it's only purpose to pass along the traits to the next stop, or offspring. The train's name is Here, Dity!!!!
Hope this helped! :)
Chemical barrier
Sweat, tears, mucus, and saliva break down and destroy pathogens. There are chemicals in the body excretions that are breaking down pathogens.