3rd Quarter Part 5 Science

_ are changes to a DNA sequence. Just like the information in DNA

as a group of sentences, _ are mistakes in spelling of the words that form those sentences.

_ are agents that cause alteration in the DNA and can lead to

permanent mutations in the DNA sequence depending on the ability of an organism to repair the damage.

Examples of mutagens are _, x-rays, ultraviolet radiation, and certain chemicals or drugs.

There are different types of mutations that you have explored in the previous

activity. These are POINT mutation and FRAMESHIFT mutation. First, you made a

_ mutation in the original DNA. The second mutation you explored is a

_ mutation. Lastly, the third mutation you determined is a special type

of point mutation called a _mutation.

It is the type mutation in DNA or RNA wherein one single nucleotide base is deleted, added or altered. This can lead to _.

_ results in the formation of a stop codon due to the substitution of one nitrogenous base.

When one nitrogenous base of the DNA is replaced and the result is an

altered codon but does not form a stop codon, it is classified as _.

Missense mutation can be classified into conservative and non-conservative.

When the new amino acid formed has the same properties of

the one that was supposed to be produced.

Missense mutation can be classified into conservative and non-conservative.

When the new amino acid formed has different properties of the

one that was supposed to be produced.

_ happens when a nitrogenous base is altered but the

same amino acid is produced. Remember, many codons can code for the same amino acid.