Indietro
Problema 95b
Identify the base and sugar in each of the following nucleosides:
c. cytidine
Problema 96c
Identify the base and sugar in each of the following nucleotides:
b. dAMP
Problema 96d
Identify the base and sugar in each of the following nucleotides:
d. UMP
Problema 98
How do the bases cytosine and uracil differ?
Problema 99
Draw the condensed structural formula for CMP.
Problema 101
What is similar about the primary structure of RNA and DNA?
Problema 103
If the DNA double helix in salmon contains 28% adenine, what is the percentage of thymine, guanine, and cytosine?
Problema 106
In DNA, how many hydrogen bonds form between guanine and cytosine?
Problema 108a
Write the complementary base sequence for each of the following DNA segments:
c. G G C C T A C C T T A A C G A C G
Problema 109a
Match the following statements with rRNA, mRNA, or tRNA:
c. carries genetic information from the nucleus to the ribosomes
Problema 110a
Match the following statements with rRNA, mRNA, or tRNA:
a. combines with proteins to form ribosomes
Problema 110b
Match the following statements with rRNA, mRNA, or tRNA:
b. brings amino acids to the ribosomes for protein synthesis
Problema 111a
What are the possible codons for each of the following amino acids?
a. threonine
Problema 112b
What are the possible codons for each of the following amino acids?
b. arginine
Problema 114a
What is the amino acid for each of the following codons?
a. CAA
Problema 115a
What is the anticodon on tRNA for each of the following codons in an mRNA?
a. AGC
Problema 116a
What is the anticodon on tRNA for each of the following codons in an mRNA?
a. GUG
Problema 117
Endorphins are polypeptides that reduce pain. What is the amino acid order for the endorphin leucine enkephalin (leu-enkephalin), which has the following mRNA?
AUG UAC GGU GGA UUU CUA UAA
Problema 118
Endorphins are polypeptides that reduce pain. What is the amino acid order for the endorphin methionine enkephalin (met-enkephalin), which has the following mRNA?
AUG UAC GGU GGA UUU AUG UAA
Problema 120
A polypeptide contains 36 amino acids. How many nucleotides would be found in the mRNA for this polypeptide?
Problema 121
What is the difference between a DNA virus and a retrovirus?
Problema 123(1)
Match each of the following processes (1 to 5) with one of the items (a to e):
1. replication of DNA
a. DNA polymerase
b. mRNA is synthesized from nuclear DNA
c. viruses
d. restriction enzymes
e. tRNA molecules bond to codons
Problema 124(2)
Match each of the following processes (1 to 5) with one of the items (a to e):
2. transcription
a. amino acids are linked together
b. RNA template is used to synthesize DNA
c. helicase unwinds DNA
d. genetic information is transferred from DNA
e. sticky ends join new DNA segment
Problema 124(1)
Match each of the following processes (1 to 5) with one of the items (a to e):
1. replication of DNA
a. amino acids are linked together
b. RNA template is used to synthesize DNA
c. helicase unwinds DNA
d. genetic information is transferred from DNA
e. sticky ends join new DNA segment
Problema 124(4)
Match each of the following processes (1 to 5) with one of the items (a to e):
4. recombinant DNA
a. amino acids are linked together
b. RNA template is used to synthesize DNA
c. helicase unwinds DNA
d. genetic information is transferred from DNA
e. sticky ends join new DNA segment
Problema 124(5)
Match each of the following processes (1 to 5) with one of the items (a to e):
5. reverse transcription
a. amino acids are linked together
b. RNA template is used to synthesize DNA
c. helicase unwinds DNA
d. genetic information is transferred from DNA
e. sticky ends join new DNA segment