Question

1. A mutation:

a. Results in a change in DNA sequence
b. Can result in abnormal encoding of protein sequences
c. Is always detrimental
d. A and B
e. All of the above

2. During the process of transcription:
a. DNA is turned into protein
b. mRNA is turned into protein
c. DNA is turned into mRNA

3. The building blocks of proteins are:
a. Amino acids
b. Nucleic acids
c. Polysaccharides
d. Fatty acids

4. Mutations:
a. Occur roughly 1 in 100 nucleotides
b. Occur roughly 1 in 1,000 nucleotides
c. Occur roughly 1 in 10,000 nucleotides
d. Never occur e. None of the above

5. In a protein:
a. A single nucleotide change can alter the encoded protein and cause disease
b. 2 or more amino acids are linked together
c. Mutations always alter the encoded protein structure and function
d. A and B e. All of the above

6. Silent mutations:
a. Are a type of point mutation
b. Code for the same amino acid as intended by the original sequence
c. Always affect protein structure and function
d. A and B
e. All of the above

Answer 1

1. d

2. c

3. a

4. e.

5. d

6. d.

Step-by-step explanation:

Mutation, generally is a change in nucleotide sequence of the DNA or a gene. This change in nucleotide sequence can result in abnormal encoding of protein sequence, leading to adverse effects on the organism. However, not all mutation produce adverse effects, in fact some mutation provides selection advantage to organisms in the environment.

Mutation occur roughly in 1 in 100,000 to 1 in 1,000,000 nucleotides. A single base or nucleotide change can alter the respective protein and makes it non-functional or cause a disease. Some mutations however, results in the production of the same amino acids or have no effects on the organism. Such mutations are termed silent.

During the process of transcription, DNA strands unwind and a strand is used as a template to form mRNA.

Proteins are polymers of amino acids. They are made up of 2 or more amino acids joined together by a peptide bond.