14.19) Determine whether each of the following statements refer to DNA, RNA, both DNA and RNA, or neither DNA nor RNA. a) exists as double stranded DNA b) has sugar-phosphate backbone both DNA and RNA c) uracil base pairs with adenine RNA- in DNA, thymine base pairs with adenine. d) has only one function DNA- DNA has just one function: storing genetic information. e) has several functions RNA- consider the function of mRNA, tRNA, and rRNA f) involved in transcription both DNA and RNA - in transcription, the information in DNA is used to make mRNA. g) involved in translation RNA- in translation, the information in mRNA is used to make a specific peptide/protein. h) involved in replication DNA-in replication, daughter DNA strands are made from parent DNA templates. i) exists as single strand RNA - DNA exists as double stranded j) is the product of translation neither DNA nor RNA - in translation, a peptide/protein is produced.
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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
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