The strand of DNA contains the sequence of bases: CGA CCG TAC. What is the sequence of the complementary strand? * a. GCT GGC ATG b. CCT CCG ATC c. GCU GGC AGC d. CCT GGC AGC 2.What is the arrangement of mRNA transcribing the DNA triplets: TAC TAG CCG CGA? * a. ATG ATC GGC GCT b. UAC UAG CCG CGA c. AUG AUC GGC GCU d. AUG ATG GGC GCA 3. A DNA base sequence is 90 bases long. How many codons can these sequence order? * a. 270 b. 180 c. 90 d. 30 4. Which of the following statements regarding translation is true? * a. there are 3 start codons and 1 stop codon b. there is one start and 3 stop codons c. there are 3 start and stop codons d. there is one stop codon and one start codon

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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.