DNA Structure and Replication Review

What components make up the backbone of a DNA molecule?

• Purines and deoxyribose

• Pyrimidines and purines

• Deoxyribose and phosphate groups

• Phosphate groups and pyrimidines

Tags

B.6A

What are the correct steps of DNA replication?​

Step 1 (a)  

Step 2 ​ (b)  

• Polymerase matches nitrogen base pairs
• Two identical DNA double helixes are produced
• Polymerase matches uracil to thymine
• Two completely different DNA strands are produced

Tags

B.5A

Which part of the DNA model is most directly associated with the coding of genetic information?

• 
• 
• 

Tags

B.6A

Albumin is a protein that is secreted by liver cells and transported to the bloodstream. What factor most directly determines the amino acids that are combined to create albumin?

• The temperature of the cell when translation is taking place

• The sequence of the nucleotides in DNA

• The amount of energy available in a cell

• The number of chromosomes in a cell

Tags

B.6A

Use the words to correctly label the diagram.

• hydrogen bond

• E

• phosphate

• C

• deoxyribose sugar

• D

Tags

B.6A

Which statement best describes a similarity among flowers, birds, and amoebas?

• They are prokaryotic organisms.

• They are classified as members of the same kingdom.

• They have genomes that consist of the same number of genes.

• They contain DNA composed of the same four types of nucleotides.

Tags

B.6B

These two DNA sequences best provide evidence that --

• all organisms have an identical genetic sequence

• the nucleotides making up the genetic code are common to all organisms

• the Texas horned lizard eats the Texas bluebonnet

• mutations occur randomly in the genetic code

Tags

B.6A

Select the number that represents the DNA base Cytosine.

Tags

B.6A

What is the name of the process in which your cells make an identical copy of DNA?

• replication

• translation

• fermentation

• transcription

Tags

B.5A

Which base sequence correctly compliments the given DNA strand?

• A T A C G T

• G C G T A C

• A T T G A C

• C G C A T G

Tags

B.6A