Practice Questions

TLS Online TPP Program

#Question id: 4118

If the 5’ splice site sequence changed from 5’- GUAAGU-3’ to 5’-GUAUGU-3’, predict the effect of the sequence change on U1 binding and U6 snRNP binding in an in vitro protein– RNA binding assay.

#Unit 3. Fundamental Processes

The mutation will not change binding of U1 and on other hand this will likely enhance binding of the U6 snRNP with the 5’ splice site
The mutation will likely cause an increase in binding of U1 and on other hand this will not change binding of the U6 snRNP with the 5’ splice site
The mutation will likely cause a decrease in binding of U1 and on other hand this will likely enhance binding of the U6 snRNP with the 5’ splice site
The mutation will likely cause a decrease in binding of U1 and on other hand this will not change binding of the U6 snRNP with the 5’ splice site

More Questions

TLS Online TPP Program

#Question id: 19033

#Unit 9. Diversity of Life Forms

Microphylls are characteristic of which types of plants?

TLS Online TPP Program

#Question id: 19028

#Unit 9. Diversity of Life Forms

Sporophylls can be found in which of the following?

TLS Online TPP Program

#Question id: 19027

#Unit 9. Diversity of Life Forms

The following characteristics all helped seedless plants become better adapted to land except

TLS Online TPP Program

#Question id: 19020

#Unit 9. Diversity of Life Forms

The main way that pine trees disperse their offspring is by using

TLS Online TPP Program

#Question id: 19019

#Unit 9. Diversity of Life Forms

Arrange the following structures, which can be found on male pine trees, from the largest structure to the smallest structure (or from most inclusive to least inclusive).

1. sporophyte 2. microspores

3. microsporangia 4. Pollen cone

5. Pollen nuclei

TLS Online TPP Program

#Question id: 19018

#Unit 9. Diversity of Life Forms

which trait(s) is (are) shared by many modern gymnosperms and angiosperms?

1. Pollen transported by wind

2. Lignified xylem

3. Microscopic gametophytes

4. Sterile Sporophylls, modified to attract pollinators