Bio 123 Chapter 10 Quiz: DNA

If you had a DNA sequence that is 5' GATTACA 3', what would be the corresponding RNA sequence?

3' CUAAUGU 5'

In any strand of DNA

50% of the nucleotides will be purines and 50% of the nucleotides will be pyrimidines.

Which scientist is generally credited for taking the best X-crystallography photograph of DNA that was used to determine the structure of DNA?

Rosalind Franklin

DNA replication is best described as

Semi-conservative, each daughter strand contains 50% of the original strand.

Which molecule is responsible for bringing amino acids to a ribosome?

tRNA

Gene duplications were important for the evolution of

Color vision in primates, including humans

Which of the following statements regarding DNA and RNA are correct?

DNA and RNA nucleotides are comprised of three components, including a 5-carbon sugar, nucleotides are linked together by Phosphodiester bonds forming a sugar-phosphate backbone.

The flow of information in a cell is best described as

DNA is transcribed to mRNA, the information in mRNA is then translated into a sequence of amino acids in a ribosome.

During DNA synthesis

DNA polymerase adds nucleotides to the 3' end of the growing daughter strand.

The two strands of DNA are held together by

Hydrogen bonds between a purine and a pyrimidine.

In a eukaryotic cell that is going to make a protein used to regulate glycolysis, translation will take place

In a free floating ribosome in the cytoplasm.

The genetic code is best described as

All of these are correct

Mutations can be induced by

All of these choices

Mutations are an alteration in the sequence of which polymer?

Deoxyribonucleic Acid

Viruses that enter our cells

Enters a lytic lifecycle if they begin to immediately form new viruses

In any nucleotide, the nitrogenous base

Is attached by a polar covalent bond to the 1' carbon of the sugar.

During DNA replication, the lagging strand

Is replicated in fragments that are antiparallel to the parent strand. The fragments are called Okazaki fragments.

The paradox of genetic disorders

Is that genes are often thought of as the disorder they cause, but genes don't exists to cause disorders.

A retrovirus

Reverse transcribes DNA from an RNA template