Term
| 3 differences between DNA and RNA |
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Definition
1. RNA is composed of a single stand, while DNA is composed of a double strand
2. RNA has a five carbon sugar ribose rather than deoxyribose found in DNA
3. RNA contains the nitrogen base Uracil rather than the nitrogen base Thymine found in DNA |
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Term
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Definition
| DNA -> RNA, in nucleus (1st step in protien synthesis) |
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Term
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Definition
| MRNA -> TRNA, Amino Acid, Protien (2nd step in protien synthesis) |
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Definition
| Group of 3 nucleotides in MRNA |
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Definition
| Group of 3 nucleotides in TRNA |
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Definition
| Forms between Amino Acids |
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Term
| Steps of.. DNA Replication (S Phase) |
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Definition
1. DNA helicase cuts hydrogen bonds (strands seperate)
2. Complementary bases pair up (A-T,G-C)
3. DNA polymerase connects sugar to phosphate bonds, 2 strands each with an old strand and a new strand |
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Term
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Definition
1. RNA polymerase cuts hydrogen bonds
2. Complementary bases pair up
3. RNA polymerase forms sugar to phosphate bonds
DNA -> RNA
A U
T A
G C
C G |
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Term
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Definition
(In ribosomes)
1. MRNA reaches ribosome
2. Codon on MRNA complementary bond to anticodons on TRNA
3. Peptide bonds form between Amino Acids
4. Peotide strand transfers
5. TRNA is released |
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Term
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Definition
-2 strands
-Double Helix
-Held together by hydrogen bonds made of parts called nucleotides
-Nucleotides have: nitrogen base (A,T,G,C), phosphate group, sugar (deoxyribose), purines (A+G), pyrimidines (T+C).
-A bonds to T (2 hydrogen bonds)
-G bonds to C (3 hydrogen bonds) |
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Term
| A nucleotide of RNA consists of ___,___,and___ |
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Definition
| Ribose, phosphate, and nitrogen base |
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Term
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Definition
| A long chain of repeated units |
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Term
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Definition
| The strand that is being copied during transcription |
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Term
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Definition
MRNA (messanger)- Copy of DNA that codes for protien
TRNA (transfer)- Carries amino acids from cytoplasm to ribosomes
RRNA (ribosomal)- Major component of the ribosomes |
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Term
| Who discoverd DNA in a double helix? |
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Definition
| James Watson and Francis Crick |
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Term
| Why is amino acid methonine so important? |
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Definition
| Methinine is the start codon |
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