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DNA Transcription Translation Miscellaneous

DNA 100

The four chemicals that make up the human genome are called:

a. Phosphates

b. Nitrogen bases

c. Nucleotides

d. Deoxyribose sugars

DNA 200

The process by which DNA copies itself is know as:

a. transcriptionb. translationc. replicationd. mutation

DNA 300

DNA copies itself with the help of which of the following:

a) mRNAb) RNA polymerasec) DNA polymerased) ribosomes

DNA 400Describe the structure of DNA by doing the

following:1. List the three parts of a nucleotide2. Describe the base pairing rules (how do the

bases match up with each other)3. Describe the role and location of hydrogen

bonds in a DNA molecule1. Phosphate, deoxyribose (sugar), nitrogenous

bases (A,T,G,C)2. A pairs with T, G pairs with C3. Hydrogen bonds are located between each

pair of bases; they hold the two strands of DNA together

DNA 500a. A sample of DNA contains 12% adenine by

weight. What are the percentages of the other three bases?

b. Will the DNA strand in part a be more or less stable than a DNA strand with 24% adenine by weight? Explain

a. 12% thymine, 38% guanine, 38% cytosineb. More stable - G and C base pairs have three

hydrogen bonds whereas A and T base pairs have 2 hydrogen bonds

Transcription 100

The purpose of transcription is to:

a) Produce gametes

b) Duplicate DNA

c) Make mRNA from the DNA

d) Correct mutations in DNA

Transcription 200

The purpose of RNA polymerase is

a) To copy DNA

b) To bring amino acids to the ribosome

c) To read DNA and make an RNA copy

d) To split apart the DNA double helix

Transcription 300

The purpose of mRNA is to:a) Bring instructions on how to make a

protein to the ribosomesb) Help the DNA double helix to copy

itselfc) Bring amino acids to the ribosomesd) Make up the structure of the

ribosomes

Transcription 400

A segment of DNA reads TACCGCGTTATG. How many amino acids does this code represent and what is the RNA sequence that would be transcribed from this?

4 codons which represents 4 amino acids.

AUG GCG CAA UAC

Transcription 500

Translation 100

The purpose of translation is toa) Create a protein from instructions on

mRNAb) To make mRNA from DNAc) To produce amino acidsd) To copy the DNA

Translation 200

In order for mRNA to do its job, it must get to which location in the cell?

a) The nucleus

b) The mitochondria

c) The cell membrane

d) The ribosomes in the cytoplasm

Translation 300Which of the following statements about translation

is correct?a) The ribosome reads the instructions on the

tRNA to make a proteinb) The mRNA is used to make more copies of DNA

for when the cell dividesc) tRNA molecules bring the correct amino acid to

the ribosomed) mRNA is created from the DNA

Translation 400

The are circled in red in the picture is a:

a) Codon

b) Anticodon

c) Amino acid

d) Nucleotide

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

Translation 500

Misc 100

A change in the genetic code is called a:

mutation

Misc 200

Which of the following is true of genes?

a) They are made of chromosomes

b) They are the instructions to make proteins

c) They found inside the ribosomes

d) They are used to make amino acids

Misc 300

Which of the following mutations in the DNA code TACGGATCT would result in the greatest change in the protein that would result?

a. Changing the first T to a C

b. Inserting a G between the first two bases

c. Changing the third base to a T

d. Switching the last base from a T to an A

Misc 400

If a DNA segment is changed from ATTGTGCCG to ACTTGTGCCG what type of mutation has occurred?

a) Point mutationb) Deletionc) Insertiond) There is no mutation

Misc 500