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41 Cards in this Set
- Front
- Back
Griffith's expirements advanced the study of genetics by proving that
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genetic information can be passed from parents to their offspring during sexual reproduction |
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what do bacteriophages infect
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viruses |
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Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur |
Proteins contain phosphorous and no sulfur |
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What part of the bacteriophage in Fig 12-1 contains genetic material?
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B |
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What stores information in a cell? |
DNA |
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What happens when a piece of DNA ismissing? |
Genetic information is lost |
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In what way is DNA like a book? |
DNA has stored info that can be copied and passed on |
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Figure 12-2 shows the structure of a |
DNA molecule
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Which of the following is a nucleotide found in DNA?
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deoxyribose+phophate group+cytosine |
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Because of base pairing in DNA, the percentage of |
thymine molecules in DNA is about equal to the percentage of adenine molecules |
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The table in FIgure 12-3 shows the results of measuring the percentages of the four bases of DNA of several different organisms. Some of the values are missing from the table. Based on Chagraff's rule, %s of guanine bases in chicken DNA should be around |
21.5% |
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Based on Chagraff's rule, the % of cytosine in DNA of bacterium S Lutea should be around |
29.4% |
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Rosalind Franklin contributed to the understanding of DNA by |
producing the images of DNA molecules using XRay |
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WATF statements correctly describes Chagraff's contribution to the study of DNA? |
Chargraff showed that adenine and thymine were found in equal percents in DNA |
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Which scientist(s) figured out the shape of DNA? |
Hershey and Chase |
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Which of the following forms a base pair with Thymine |
Adenine |
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DNA replications results in two DNA molecules
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each with a new strand and one original strand |
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During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases |
GATCCA
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in figure 12-5 what nucleotide is going to be added at point 1 opposite thymine? |
adenine |
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in 12-5 what is adding base pairs to the strand? |
DNA polymerase |
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In both prokaryotes and eukaryotes, DNA replication happens |
before cell division |
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RNA contains the sugar |
Ribose |
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Unlike DNA, RNA contains
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uracil |
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Which of the following are found in both DNA and RNA |
deoxyribose, phosphate groups, and guanine |
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Which nucleotide in 13-1 indicates the nucleic acid above is RNA? |
uracil |
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Which of the following is true |
RNA is single stranded |
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Which type of RNA brings the info in the genetic code from the nucleus to other parts of the cell? |
mRNA |
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WOTF is true of transcription? |
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Which molecules are involves in protein synthesis? |
messenger RNA, ribosomal RNA and transfer RNA |
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During Eukaryotic transcription, an RNA molecule is formed that is |
complementary to part of one strand of DNA |
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What does figure 13-2 show? |
the genetic code? |
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How many nucleotides are needed to specify three amino acids? |
9 |
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There are 64 codons and 20 amino acids. WOTF is true? |
several different codons can specify the same amino acid |
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In fig 13-3, which amino acid is specified by the mRNA code CCC? |
Pro |
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in Fig 13-3 which code specifies the same amino acid as UAU?
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UAC |
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What happens during translation? |
the cell uses a messenger RNA code to make protiens |
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During translation, the type of amino acid that is added to the growing polypeptide depends on the |
codon on the mRNA and the anticodon on the tRNA |
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Genes contain instructions for assembling |
proteins |
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Which is the correct sequence of the transfer of information in most organisms? |
DNA to RNA to protein |
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In eukaryotes |
transcription takes place in the nucleus and translation takes place in the cytoplasm |
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When a chromosome undergoes a deletion mutation, information is |
lost |