(Q).
Answer the following question given this paragraph:   Deleting or inserting a nitrogen base causes a frameshift mutation. All of the codons following the mutation are misread. This may be disastrous. To see why, consider this English-language analogy. Take the sentence “The big dog ate the red cat. ” If the second letter of “big” is deleted, then the sentence becomes: “The bgd oga tet her edc at. ” Deleting a single letter makes the rest of the sentence impossible to read.   Q: Deleting or inserting a nitrogen base causes what?   Choices:  - a placentation mutation  - a degenerative mutation  - a photoinhibition mutation  - a frameshift mutation  A:
(A).
a frameshift mutation


(Q).
Answer the following question given this paragraph:   8.1 Linear Momentum and Force Linear Momentum The scientific definition of linear momentum is consistent with most people’s intuitive understanding of momentum: a large, fastmoving object has greater momentum than a smaller, slower object. Linear momentum is defined as the product of a system’s mass multiplied by its velocity. In symbols, linear momentum is expressed as.   Q: The product of a system’s mass multiplied by its velocity is called what?   Choices:  - variation momentum  - magnetic momentum  - horizontal momentum  - linear momentum  A:
(A).
linear momentum


(Q).
Answer the following question given this paragraph:   These mutations may result in a protein with the same function, with altered function, or with no function. Silent mutations , as they code for the same amino acid, will have no altered effect on the protein. Missense mutations may have a minor effect or a dramatic effect on the protein. Nonsense mutations usually have the most dramatic effet. Depending on the position of the premature stop codon, nonsense mutations may result in an unstable mRNA that cannot be translated, or in a truncated mRNA and a much "smaller" protein without any significant activity.   Q: Which kind of mutations have the most dramatic effect on proteins?   Choices:  - arbitrary mutations  - sight mutations  - cancerous mutations  - nonsense mutations  A:
(A).
