TLS Online TPP Program

#Question id: 4809


The upper most following figure above shows the locations of four genes on the genetic map of an organism; the lower figure shows the locations of the same four genes on a physical map derived from the nucleotide sequence of the DNA of that organism. The maps are not identical because

#Unit 8. Inheritance Biology
  1. There is no relationship between the position of genes in a genetic map and their positions on the DNA

  2. recombination frequencies per kb of DNA are not uniform throughout a chromosome

  3. the farther apart two genes are, the more likely they are to recombine

  4. some genes contain introns

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TLS Online TPP Program

#Question id: 5204

#Unit 11. Evolution and Behavior

Bioinformatics can be used to scan sequences for probable genes looking for start and stop sites for transcription and for translation, for probable splice sites, and for sequences known to be found in other known genes. Such sequences containing these elements are called

TLS Online TPP Program

#Question id: 5205

#Unit 11. Evolution and Behavior

Why is it preferable to use large computers and databases in searching for individual genes, rather than testing each sequence for possible function?

TLS Online TPP Program

#Question id: 5206

#Unit 11. Evolution and Behavior

A microarray known as a GeneChip, with most now known human protein coding sequences, has recently been developed to aid in the study of human cancer by first comparing twothree subsets of cancer subtypes. What kind of information might be gleaned from this GeneChip to aid in cancer prevention?

TLS Online TPP Program

#Question id: 5207

#Unit 11. Evolution and Behavior

Why is it unwise to try to relate an organismʹs complexity with its size or number of cells?

TLS Online TPP Program

#Question id: 5208

#Unit 11. Evolution and Behavior

Fragments of DNA have been extracted from the remnants of extinct wooly mammoths, amplified, and sequenced. These can now be used to

TLS Online TPP Program

#Question id: 5209

#Unit 11. Evolution and Behavior

If humans have 2,900 Mb, a specific member of the lily family has 120,000 Mb, and a yeast has ~13 Mb, why canʹt this data allow us to order their evolutionary significance