DNA Review Pt 2

What are the two types of Nucleic Acids?

• mRNA & tRNA

• DNA and RNA

• DNA and mRNA

• RNA and tRNA

1 Po4 + 1 Deoxyribose sugar + 1 Nitrogen base make up what?

• RNA Nucleotide

• Nucleus

• DNA Nucleotide

• Replication

The two types of Purines are.....

• Cytosine

• Thymine

• Adenine

• Guanine

The two types of Pyrimidines are......

• Thymine

• Cytosine

• Adenine

• Guanine

The sides of the double helix are made of .....

• Ribose sugar and PO4

• Deoxyribose sugar and PO4

• purines hydrogen-bonded to pyrimidines

• nitrogen bases and sugar

What is the purpose of DNA Replication?

• To move information from the nucleus to the ribosomes int he cytoplasm

• To proofread the strands

• Every new cell needs to receive a complete copy of DNA

• To assist in protein production

What is the FIRST step in DNA replication

• DNA polymerase helps to form the sugar-phosphate bonds linking one nucleotide to the next

• DNA helices breaks weak hydrogen bonds

• DNA molecule "unzips" and exposes bases

• DNA Helicase attaches to DNA

What is the final product in DNA replication?

• Results in 1 new strand of DNA

• An RNA molecule with complementary base sequence of a segment of DNA has been made

• Results in 2 new stands of DNA

• The smaller RNA "copy" can leave the nucleus, go to the cytoplasm and assist in protein production.

What is an error in the nucleotide sequence that is not repaired by enzymes?

What is the complementary strand to

T A G C A A C C C G T G A G C

• A T C G T T G G G C A C T C G

• A T C G T T C C G C A C T C G

• A U C G U U G G G C A C U C G

• A U G C U U C C C G A G U C G