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TLS Online TPP Program

#Question id: 33477

Finding: Ancestry have similar organizations with conservation of the positions (of at least some) of the introns.

Example: The globin and DHFR genes are examples of a genes that share a common ancestor

#Unit 2. Cellular Organization
  1. Finding is true but Example is not correct
  2. Finding is false but Example is correct
  3. Findings and examples both are correctly matched
  4. Findings and examples both are incorrectly matched
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TLS Online TPP Program

#Question id: 23176

#Unit 13. Methods in Biology

When we use a high-intensity light to permanently bleach the fluorochrome in the patch, there will initially be no fluorescence and it will look 
TLS Online TPP Program

#Question id: 18867

#Unit 13. Methods in Biology

_________ is used to acquire total magnification.
TLS Online TPP Program

#Question id: 15744

#Unit 5. Developmental Biology

In XX gonads, germ cells are essential for the:
TLS Online TPP Program

#Question id: 1353

#Unit 4. Cell Communication and Cell Signaling

If a laboratory mouse had a mutation rendering the gene that codes for the L-selectin protein nonfunctional, which of the following symptoms would the animal exhibit?
TLS Online TPP Program

#Question id: 15361

#Unit 4. Cell Communication and Cell Signaling

The chemical benzo(a)pyrene, found in cigarette smoke as well as in coal tar, undergoes metabolic activation in the lungs to form a potent mutagen that mainly, causes conversion of guanine (G) to thymine (T) bases, a transversion mutation, When applied to cultured bronchial epithelial cells, activated benzo(a)pyrene induces many mutations, including inactivating mutations of the p53 gene, at codon number______