BIOL 112 Chapter Notes - Chapter 3: Start Codon, Tata Box, Peptide

5). The table shows five different mutations of a small section of a gene.

Use the base-pairing rules to complete the second column. For each mutation, write the sequence for any mRNA codons that will be changed as a result of the mutation in bold. Write any codons that won’t be changed in regular font.

Using the genetic code chart from question #3, identify any stop codons in the mRNA molecules – write these codons in red

For each mutation, write any amino acids that will be changed in the last column in bold font. Use red XXXs to indicate any amino acids that will be missing as a result of stop codons and use use regular font indicate any amino acids that will not be changed.

If the bold term in each statement is correct hen write the letter C next to it. if the term is incorrect then replace it with the correct term.

The nucleotide bases found only in RNA and not in DNA is thymine.

The class of RNA molecules that carries the amino acids that are added to the growing polypeptide chain is tRNA.

During translation immediately after the first and second tRNA molecules become attached side by side on the mRNA., a hydrogen bond is formed between adjacent amino acids.

In the genetic code, 20 bases on the DNA code for a single amino acid.

The major lipid involved is transcription is RNA polymerase.

The one strand of DNA used as a template in the making of mRNA during transcription, is the template strand.

Which of the following is NOT a direct consequence of the fact that DNA polymerase can only build onto the end of an existing nucleic acid?

Question 6 options:

How does a nucleotide sequence code for a protein in nearly all living organisms?

Question 7 options:

Fill in the blanks. To make one strand of DNA, _________ monomers are linked together in a chain, forming a polymer we call a(n) ________ .

Question 8 options:

Which of the following was NOT part of the ideas that Darwin used in his book On the Origin of Species?

Question 9 options:

Here is a hypothetical mRNA sequence:

5' G G A U G C U A G U A U G A 3'

What is the amino acid sequence encoded by this mRNA?

Question 10 options: