What are the three major types of RNA and their functions? What would happen to translation if each type of RNA were degraded?
What will be an ideal response?
1. Messenger RNA (or mRNA) is transcribed from the DNA template and translated into proteins.
2. Ribosomal RNA (rRNA) forms part of the ribosomes, the plentiful cellular structures where protein assembly takes place.
3. Transfer RNA (tRNA) carries amino acids, the building blocks of proteins, to ribosomes.
If any of these types of RNA were degraded, then translation would not occur. Degrading mRNA would prevent translation of that particular gene. Degrading rRNA or tRNA would prevent translation of any mRNAs because the ribosome would not form properly, and the transfer RNA would not bring the correct amino acid to the growing polypeptide chain.
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Four of the five biomes/environments listed below are terrestrial. Select the exception
a. boreal forest b. temperate deciduous forest c. tropical forest d. kelp forest e. thorn forest
Which of the following occur in telophase I of meiosis?
a. nuclear envelope formation b. pairing of homologues c. formation of a bipolar spindle d. crossing over e. condensation of chromosomes
Body cells have self-markers located
a. in their nuclei. b. in the endoplasmic reticulum. c. in the mitochondria. d. on the plasma membrane. e. inside the Golgi bodies.
Different, or alternative, forms of the same gene are called
A) alleles. B) genetomorphs. C) chromatids. D) homologous. E) mutants.