13. Most defective transposons that are nonautonomous: A. Lack the inverted terminal repeats B. Lack the direct terminal repeats C. Lack antibiotic resistance genes D. Lack the resolvase gene E. Lack the transposase gene
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.
13. Most defective transposons that are nonautonomous:
A. Lack the inverted terminal repeats
B. Lack the direct terminal repeats
C. Lack antibiotic resistance genes
D. Lack the resolvase gene
E. Lack the transposase gene
14. The first step in target-primed reverse transposition is:
A. An endonuclease nicking one strand in the target DNA
B. An endonuclease nicking both strands of the target DNA
C. Reverse transcriptase extends a nicked 3’ end
D. An RNA polymerase interacts with the 5’ UTR promoter to transcribe the element
E. An DNA polymerase interacts with the ends of the element to replicate it
15. Homology between identical retrotransposon inserts can directly lead to:
A. Genome deletions
B. Pseudogenes
C. Gene rearrangements
D. Both A and B
E. Both A and C
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