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Explain the different ways apomictic seeds can develop, Give an example of each.
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Mention one advantage of apomictic seeds to farmers.
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Answer the following question.
When a seed of orange is squeezed, many embryos, instead of one are observed. Explain how it is possible.
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State what is apomixis. Write its significance. How can it be commercially used?
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Apomixis is a type of reproduction that results is the development of a/an ______.
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The polyembryony commonly occurs in ______.
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In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?
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What is polyembryony and how can it be commercially exploited?
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Which of the following statements is correct about the role of regulatory proteins in transcription in prokaryotes?
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Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/position of eye(s) etc. Comment.
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The image below shows the result of plating bacteria in a chromogenic medium after incorporating the gene of interest in the plasmid. Some plates had blue colonies; some plates had white colonies. A single bacterium extracted from Plate I, II, and III is shown below:
On the basis of your observations:
- Identify the plate(s) which is/are white. Give a reason.
- Identify the plate(s) which is/are blue. Give a reason.
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What do ‘Y’ and ‘B’ stand for in ‘YAC’ and ‘BAC’ used in the Human Genome Project (HGP)? Mention their role in the project.
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Why is the Human Genome project called a mega project?
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Briefly describe the following:
Bioinformatics
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Write the percentage of the total human genome that codes for proteins and the percentage of discovered genes whose functions are known as observed during HGP.
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Expand the ‘SNPs’ identified by scientists in HGP.
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Write any six salient features of the human genome as drawn from the human genome project.
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Answer the following question.
Write the basis on which Alfred Sturtevant explained gene mapping.
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Answer the following question.
List the two methodologies which were involved in the human genome project. Mention how they were used.
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The human chromosome with the highest and least number of genes in them are respectively ______.
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