Mutations+ From+Page+38+to+41

**QUESTION. 25 Mutation that occurs in somatic cells appear in the individual that possesses the mutation, but __will not be transmited to offspring__. Mutations that occur in __sexual cells can actually be transmited to offspring__**. (Q. 26 An organism affected by __monoploidy__ presents __one set of chromosomes only (n)__ In a monosomy there is one chromosome less ( 2n-1). Obviously, the genetic alteration would be bigger in the monoploidy.) = = =__ACTIVITIES FROM PAGE 40 AND 41__= ** Q. 27 If the mutation occurs in one nitrogenous base only, would it have important consequences for the organism? ** **Yes, because the change in one nitrogenous base can change an amino acid and then have an effect on the structure of a protein.** **Q. 29** **Somatic mutations are those that occur in somatic cells.** **Germinal mutations take place in sex cells (gametes).** **Germinal mutations can be transmitted to offspring, on the other hand somatic mutations cannot be transmitted to offspring.** **Q. 30** **When we observe the sequence we can see that there is a beneficial mutation and a very beneficial mutation. As a result, due to the process of natural selection, the very beneficial mutation increases within the population until the entire population has it.** **Q. 31 This sequence shows that a catastrophic event has occurred causing an environmental change. The __environmental change has turned the least beneficial mutation into the most beneficial mutation,__ which __has progressively been passed on to the new offspring until the entire population has it.__**
 * ACTIVITIES FROM PAGE 39. MUTATIONS.**