missed questions

Question 1

state one function for a region of DNA that does not code for proteins

Answer 1

regulator of gene expression, e.g. promotor, enhancer, silencer

Question 2

outline the role of the tRNA activating enzymes

Answer 2

ATP hydrolysis provides energy for amino acid attachment, they attach a specific amino acid to the 3’ end of the tRNA, this process repeats (they attach amino acid to all the tRNA molecules that have anticodon corresponding to that amino acid

Question 3

outline the roles bacteria play in the carbon cycle

Answer 3

1. decomposition of dead material by saprotrophic bacteria (decomposition leads to CO2 formation)
2. partially decompose dead organic matter causing peat formation in bogs
3. photosynthetic bacteria fix CO2 in photosynthesis

Question 4

outline the law of independent assortment

Answer 4

two or more traits/genes inherited independently of one another
observed in genes that are not linked,
homologous chromosomes align randomly along the equator during metphase 1, homologues pulled to opposite poles in A1

Question 5

state the function of amylose

Answer 5

hydrolyze starch into maltose