Practice Questions

TLS Online TPP Program

#Question id: 4760

you set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. you notice in the f1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). which of the following explanations is the most likely?

#Unit 8. Inheritance Biology

some of your females had already mated with yellow males before you collected them.
some of your parental flies must have had a new mutation in their germ cells.
the mutation which causes yellow body color is on the x chromosome.
the mutation which causes yellow body color is on the y chromosome

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TLS Online TPP Program

#Question id: 12673

#Unit 10. Ecological Principles

Burning fossil fuels releases oxides of sulphur and nitrogen. Ultimately, these are probably responsible for

TLS Online TPP Program

#Question id: 12126

#Unit 10. Ecological Principles

Which of the following describes a successional event in which one organism makes the environment more suitable for another organism?

TLS Online TPP Program

#Question id: 3907

#Unit 3. Fundamental Processes

Which of the following is true about transcription?

TLS Online TPP Program

#Question id: 28077

#Unit 6. System Physiology – Plant

The catalytic site for water oxidation in lumen is a

TLS Online TPP Program

#Question id: 33285

#Unit 2. Cellular Organization

Centralspindlin assembly at the midzone is stimulated by the protein, known as: