Answer: C. Photosynthesis
Cynobacteria, or blue green algae were the first primitive single celled organisms on planet earth, that were capable of performing photosynthesis on planet Earth. The cynobacteria were responsible for producing oxygen by oxidizing water to evolve oxygen, using sunlight and carbon dioxide present in the atmosphere. These primitive organisms had chloroplast to capture the sunlight.
Non-Mendelian inheritance is when a pattern doesn't separate the way Mendel describes how they should.
The question given here is not complete, there is no example of biotechnology give. In this condition any example can be taken here, plant biotechnology is taken as an example.
Answer: The plant biotechnology can be defined as a field that helps in agriculture. The plants and crops are modified in such a way that the crops produced are of great importance.
Explanation:
The example is genetically modified plants. The genes of the plants is modified in such a way the products produced are disease resistant, drought resistant and have high nutritive value.
These crops are not naturally present in the environment it is produced by the genetic manipulation which is the work of plant biotechnology.
There are many disadvantages associated with this techniques such as horizontal gene transfer, loss of insects, and the long term effect of these plants cannot be predicted.
Answer:
The correct answer is letter D. Conventional breeding
Explanation:
In conventional genetic improvement a plant is crossed with another of the same species, with no incorporation of genes from another organism into the plant's genome, requiring repeated crossings until reaching the desired improved cultivar. Only in transgenics or genetic engineering are genes from another organism incorporated into the plant's genome.
Below are the choices:
There will be no change in the polypeptide coded by this gene because introns are not expressed.
A change in reading frame will alter all amino acids in the polypeptide past the point of the first substitution.
A change in reading frame will alter all amino acids in the polypeptide past the point of the second substitution.
This intron will not be removed during pre-mRNA splicing because the spliceosome will not recognize the intron-exon junctions.
<span>Each base substitution is likely to alter only one amino acid in the final polypeptide chain.
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The answer is <span>This intron will not be removed during pre-mRNA splicing because the spliceosome will not recognize the intron-exon junctions.</span>