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Which of the following life processes is evolved around RNA?
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In an mRNA molecule, untranslated regions (UTRs) are present at ______.
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UTRs are the untranslated regions present on ______.
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Which of the following statements is correct regarding ribosomes?
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Regulation of gene expression occurs at the level of ______.
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Which cellular process is shown below?
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Which of the following are correct statements for a tRNA molecule?
- It is an adapter molecule.
- Previously called sRNA (soluble RNA)
- tRNA has a codon loop that has bases complementary to the code,
- it also has an amino acid accepter end to which it binds to amino acids.
- It is non-specific for each amino acid.
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The phenomenon observed in some plants wherein parts of the sexual apparatus are used for forming embryos without fertilization is called ______.
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Are pollination and fertilization necessary in apomixis? Give reasons.
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Are parthenocarpy and apomixis different phenomena? Discuss their benefits.
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Which of the following is true with respect to AUG?
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Assertion: Apomictic embryos are genetically identical to the parent plant.
Reason: Apomixis is the production of seeds without fertilization.
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(a) Identify the polarity of x to x’ in the diagram below and mention how many more amino acids are expected to be added to this polypeptide chain.
(b) Mention the codon and anticodon for alanine.
(c) Why are some untranslated sequences of bases seen in mRNA coding for a polypeptide? Where exactly are they present on mRNA?
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Explain the process of aminoacylation of tRNA and its role in the process of translation.
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How does initiation of the translation process occur in prokaryotes? Explain.
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Where are the untranslated regions located on mRNA and why?
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What is the importance of apomixis?
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State what is apomixis. Comment on its significance. How can it be commercially used?
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Explain any three advantages that seeds offer to angiosperms.
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Why are some seeds referred to as apomictic seeds?
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