Practice Questions

TLS Online TPP Program

#Question id: 9239

Why are changes in the global carbon cycle important?

#Unit 9. Diversity of Life Forms

Burning increases available carbon for primary producers and, therefore, primary consumers.
Deforestation and suburbanization increase an area's net primary productivity.
Increasing atmospheric concentrations of carbon dioxide are altering Earth's climate.
By using fossil fuels, we are replenishing a nonrenewable resource.

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TLS Online TPP Program

#Question id: 15662

#Unit 8. Inheritance Biology

You develop an inbred strain of mice that display one of two distinct syndromes. What evidence might lead you to believe that these mice are mutant for a gene or genes affected by imprinting?

TLS Online TPP Program

#Question id: 15663

#Unit 8. Inheritance Biology

A mouse heterozygous at the Igf-2 locus is dwarf and has 50% dwarf progeny when mated to a homozygous Igf-2m animal. Which statement about this animal is FALSE?

TLS Online TPP Program

#Question id: 15664

#Unit 8. Inheritance Biology

Which of the following statements regarding epigenetic inheritance is FALSE?

TLS Online TPP Program

#Question id: 15665

#Unit 8. Inheritance Biology

In deletion mapping, mutations can be localized to a region of the gene because:

TLS Online TPP Program

#Question id: 15666

#Unit 8. Inheritance Biology

Which of the following could NOT be used to describe a sex limited trait:

TLS Online TPP Program

#Question id: 15667

#Unit 8. Inheritance Biology

You set up the following dihybrid mapping cross in fruit flies.

P e+e+ roro cq cq x ee ro+ro+ cq+cq+. After backcrossing F1 males to ee roro cq cq females, you get the following results: gray body, rough eyes, claret eyes 576; ebony body, smooth, red eyes 564. How can you explain this result?