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Ch. 10 Bio
Sean
| Question | Answer |
|---|---|
| The DNA codon AGT codes for an amino acid carried by a tRNA with the anticodon ______. | AGU |
| What type of chemical bond joins the bases of complementary DNA strands? | hydrogen |
| Evidence for the spiral nature of DNA came from ______. | X-ray crystallography studies |
| Where is translation accomplished? | ribosomes |
| The modern phrasing of Beadle and Tatum's hypothesis about relationships between genes and their products is "one gene-one ______." | polypeptide |
| The shared genetic code of all life on Earth is evidence that ______. | all life shares a common ancestry |
| If one strand of a DNA double helix has the sequence GTCCAT, what is the sequence of the other strand? | CAGGTA |
| Question text If adenine makes up 20% of the bases in a DNA double helix, what percent of the bases are guanine? | 30% |
| Mad cow disease is caused by | infectious proteins called prions. |
| Thymine and cytosine differ from adenine and guanine in that | thymine and cytosine are single-ring structures, whereas adenine and guanine are double-ring structures. |
| Peptide bonds form between ______. | amino acids |
| What is the ultimate source of all diversity? | mutation |
| Translation converts the information stored in ______ to ______. | RNA... a polypeptide |
| The correct sequence of events occurring during transcription is ______ | initiation, elongation, termination |
| What protects mRNA from attack by cellular enzymes? | a cap and tail |
| DNA and RNA are polymers composed of ______ monomers. | nucleotide |
| The expressed (coding) regions of eukaryotic genes are called | exons |
| RNA contains the nitrogenous base ______ instead of ______, which is only found in DNA. | uracil... thymine |
| If a strand of DNA has the sequence AAGCTC, transcription will result in a(n) ______ | single RNA strand with the sequence UUCGAG |
| After replication, ______. | each new DNA double helix consists of one old strand and one new strand |
| A mutation within a gene that will insert a premature stop codon in mRNA would ______. | result in a shortened polypeptide chain |
| The region of DNA where RNA synthesis begins is the ______. | promoter |
| How many nucleotides make up a codon? | three |
| The backbone of DNA consists of ______. | repeating sugar-phosphate-sugar-phosphate pattern |
| How many amino acids are common to all living systems? | 20 |
| The RNA that is translated into a polypeptide is ______ RNA. | messenger |
| HIV (human immunodeficiency virus) must use its own ______ to reproduce. | reverse transcriptase |
Created by:
Addiejo