What type of organic molecule are DNA and RNA?

What is the building blok of DNA and RNA?

Compare and Contrast. DNA and RNA. Move the words to show the similarties and differences between DNA and RNA.

What part of the nucleotide is #1?

What part of the nucleotide is #2?

What part of the nucleotide is #3?

Find the complementary DNA strand. (Remember the base pairing: A-T and C-G)

T A C G A T

Find the complementary DNA strand. (Remember the base pairing: A-T and C-G)

G A T T A C

Put the steps of DNA replication in order.

1. DNA helicase unwinds the DNA
2. End with 2 DNA strands, each strand has one original and one new strand
3. Polymerase add nucleotides
4. Ligase glues the fragments on the lagging strand

In the picture below, which number indicates the leading strand. The strand that is built continously (in one piece) during DNA replication?

In the picture below, which number indicates the lagging strand. The strand that is built in pieces during DNA replication?

If there is 22% of G in a DNA strand, how much C is there in the complementary strand?

If there is 40% of C in a DNA strand, how much T is there in the complimentary strand?

Where does transcription occur?

What is made at the end of transcription?

Where does translation occur?

What is made at the end of translation?

Transcribe the following DNA sequence (remember A-U and C-G).

T A C G A T

Transcribe the following DNA sequence (remember A-U and C-G).

C T C G A A

All six codons listed below code for the same amino acid during protein synthesis. Which of the following statements describes an advantage of having multiple codons for the same amino acid?

CGU,  CGC,  CGA,  CGG,  AGA,  AGG

How many codons are in the sequence:

AUG-CCC-GGC-AUU

Which of the following describes a mutation in a parent that could change the phenotype of its future offspring?

All corn plants contain the ZmLA1 gene. Some corn plants contain a certain mutation in the ZmLA1 gene. The graph below shows the amount of ZmLA1 RNA produced in plants with the normal gene and in plants with the mutated gene.

Based on the graph, what most likely happens in corn plant cells as a direct result of the mutated gene?

What type of mutation occurred in the DNA sequence shown?

Based on this information, what is the expected effect of the mutation?