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TLS Online TPP Program

#Question id: 5837

Which of the following lead(s) to a point mutation?  

#Unit 8. Inheritance Biology

  1. deamination of a cytosine base into a uracil base

  2. benzo(a)pyrene conversion of guanine to a thymine base

  3. deamination of 5-methyl cytosine into thymine

  4. all of the above

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TLS Online TPP Program

#Question id: 19270

#Unit 9. Diversity of Life Forms

the result of heterospory is 
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