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TLS Online TPP Program

#Question id: 3578

A locus is:

#Unit 8. Inheritance Biology

  1. One version of a gene.

  2. The location of a gene along the chromosome.

  3. The character the gene effects.

  4. The mechanism of action of a gene.

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TLS Online TPP Program

#Question id: 6635

#General Aptitude

Choose the group of letters which is different from others.
TLS Online TPP Program

#Question id: 18858

#Unit 13. Methods in Biology

Where in the genome are loxP sites located in a Cre/Lox model?
TLS Online TPP Program

#Question id: 23687

#Unit 13. Methods in Biology

Bacteria that contain the plasmid, but not the eukaryotic gene, would grow
TLS Online TPP Program

#Question id: 12461

#Unit 10. Ecological Principles

A diagram of a food web, for the following questions. (Arrows represent energy flow and letters represent species.)

If this were a marine food web, the smallest organism might be
TLS Online TPP Program

#Question id: 4741

#Unit 8. Inheritance Biology

The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?