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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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During anaphase 1, which of the following seperate |
Homologous chromosomes |
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Crossing over contributes genetic variability between |
Homologous chromosomes |
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Which of these statements is incorrect concerning homologous |
Homologous chromosomes have the same alleles before crossing over |
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Meiosis of one diploid cell results in the production of |
4 haploid cells |
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If the guanine content of a certain segment of double stranded DNA is 28 percent, what is the adenine content |
22 |
G bind with C and A binds with T |
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Suppose you are provided with an activly dividing culture og E.voli bacteria to which radioactive thymine has been added. What would happen if a cell replicates once in the presence of this radioactive base? |
DNA in both daughter cells would be radioactive |
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Protons that regulate gene expression through operons ______ |
Interact directly through physical contact with DNA |
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In the lack Operon , a mutation in the operator that prevents repressive binding will cause |
More expression of the lack Operon when lactose is absent |
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A particular triplet in the bases in the template strand of DNA is 5' AGT 3'.the corresponding codon for the mRNA transcribed is |
3' UCA 5' |
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A point mutation occurs that leads to a stop codon in the 500th amino acid of a polypeptide containing 10,000 amino acids. This mutation is known as a |
Nonsense |
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During gene expression. Which of the following leaves the nucleus |
mRNA |
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How many nucleotides bases specify an amino acid |
3 |
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A gene is |
A segment of DNA that codes for proteins |
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Eukaryotic genomes have gene sequences that can code for more than one polypeptide sequence because |
Different exons can be cut out of the pre-mRNA |
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