The structural maintenance of chromosome (SMC) proteins are extended proteins that form defined pairs by interacting through lengthy coiled-coil domains. Together with non-SMC proteins, they form multiprotein complexes that act to link two DNA helices together. Identify the SMC proteins in the figure given below and match them with their respective subunits.

i. Blue – Cohesin made up of Smc 1 and Smc 2 proteins.

ii. Green – Condensin made up of Smc 3 and Smc 4 proteins.

iii. Blue – Condensin made up of Smc 2 and Smc 4 proteins.

iv. Green – Cohesins made up of Smc 1 and Smc 3 proteins.

v. Blue – Condensin made up of Smc 1 and Smc 3 proteins.

vi. Green – Cohesins made up of Smc 2 and Smc 4 proteins.

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: 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: 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: 19028

#Unit 9. Diversity of Life Forms

Sporophylls can be found in which of the following? 

TLS Online TPP Program

#Question id: 19029

#Unit 9. Diversity of Life Forms

Assuming  that  they all belong to the same plant, arrange the following structures from largest to smallest (or from most inclusive to least inclusive). 

1. Spores                 2. Sporophylls 

3. Sporophytes 4. Sporangia 

TLS Online TPP Program

#Question id: 19030

#Unit 9. Diversity of Life Forms

Of the following list, flagellated (swimming) sperm are generally present in which groups? 

1. Lycophyta                 2. Bryophyta 

3. Angiosperms 4. Chlorophyta 

5. Pterophyta