Bio DNA study thingy

DNA replication results in two DNA molecules,

• each with two new strands

• one with two new strands and the other with two original strands

• each with one new strand and one original strand

• each with two original strands

What is the role of DNA polymerase in DNA replication?

• DNA polymerase replicates tRNA, mRNA, and rRNA

• DNA polymerase adds A-U-G-C as compliments to the original DNA stand to make an identical copy

• DNA polymerase unzips the DNA

• DNA polymerase adds complimentary free nucleotides to the original strand to make an identical copy

What nucleotide in DNA replication is going to be added at point 1, opposite from thymine?

• adenine

• thymine

• cytosine

• guanine

During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases

• TCGAAC

• GATCCA

• AGCTTG

• GAUCCA

Select all of the following DNA replication enzymes that are paired correctly with their functions.

• Helicase: Unzips and unwinds the DNA double helix.

• Helicase: Adds RNA nucleotides to the growing molecule.

• DNA Polymerases: This group of enzymes adds DNA nucleotides to the growing DNA molecule, proofreads the DNA, and replaces the RNA primer with DNA nucleotides.

• DNA Polymerases: This group of enzymes makes proteins during protein synthesis.

• Ligase: "Glues" together the new nucleotides.

DNA replication is said to be semi-conservative. What does semi-conservative mean in the context of DNA replication?

• Only the important parts of the base sequence of the original DNA are conserved during replication.

• Only one strand of the double-stranded DNA is replicated.

• Both DNA molecules resulting from replication have one of the original strands and one newly synthesized strand.

• DNA replication only occurs in half of the chromosomes in each cell cycle.

• The two new strands come together to form a new double-stranded DNA molecule, and the original is destroyed.

What is the job of the enzyme helicase in DNA replication?

• unwind and unzip the DNA molecule

• base pair new A,T,C,G with the template DNA pieces

• proofread the two new DNA molecules

• add new deoxyribose and phosphate groups

The partially completed diagram shows a double-stranded DNA molecule undergoing DNA replication. The original DNA strands
​are shown in blue. Newly formed DNA strands are shown in yellow.
A. Place a DNA molecule into each of the blank boxes to predict the results of DNA replication. DNA molecules may be used once, twice, or not at all.

• Both mixed strands of DNA

• No mixed strands of DNA

The diagram shows DNA replication with the daughter strands shown as green arrows. According to the diagram, where can the 3’ end of a DNA strand be found?

• The point of the top arrow

• The right side of the bottom template strand.

• The tail of the bottom arrow.

• The tail of the top arrow.

An enzyme is a protein that facilitates certain cell processes. During your investigation, what was the name of the enzyme that facilitated in splitting the DNA strand in half? This was known as DNA _____