#Question id: 8775
#Unit 9. Diversity of Life Forms
Use the following information to answer the question. Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants. A crucial photosynthetic gene of the cyanobacterium that gave rise to the chromatophore is called psaE. This gene is present in the nuclear genome of the cercozoan, but is not in the genome of the chromatophore. This is evidence of ________.
#Question id: 4291
#Unit 3. Fundamental Processes
There are two classes of release factors. Match the following
|
A. Class I release factors |
1. recognize the stop codons and trigger hydrolysis of the peptide chain from the tRNA in the P-site. |
|
B. Class II release factors |
2. stimulate the dissociation of the class I factors from the ribosome after release of the polypeptide chain. |
|
C. RF1 |
3. recognizes the stop codon UAG |
|
D. RF2 |
4. recognizes the stop codon UGA. |
|
E. RF1 & RF2 |
5. UAA |
#Question id: 33408
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 231
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 3372
#Unit 11. Evolution and Behavior
Fish, penguin and Dolphin are independently evolved similar traits as a result of having to adapt to similar environments or ecological niches.
A. On a molecular level, this can happen due to random mutation in unrelated taxon to adaptive changes
B. This is the example of divergent evolution, occurred due to similar group of organisms inhabiting different environments
C. Similar phenotype are produced by identical change in orthologous gene
D. This is the example of convergent evolution, occurred due to similar group of organisms inhabiting different environments
Which of the following is the correct combination?