Master Best of Homework Chapter 9 Google Chrome Secure https

Master Best of Homework Chapter 9 Google Chrome Secure https:// masteringgenetics.com 4765851 session Princ. of Genetics Bio 260 SP 2017 CRN 10541 Chapter g Problem 9.8 Problem 9.8 Part A What observations are consistent with the conclusion that DNA serves as the ganetic material in aukaryotes? Select the four correct statements. DNA and RNA are found to be the only macromolecules in eukaryotes that consist of a set of subunits which can combine in unique sequences. Specific genes can be isolated and spliced into bacterial DNA. which can be inserted into a bacterial cel and then its genetic expression is monitored. DNA is found to be the only macromolecule in eukaryotes that has different subunits. DNA is shown to be the genetic material in bacteria and some phages DNA is shown to be present in mitochondria, chloroplasts and nucleus, where genetic function is performed. For DNA, content in various cell types action and absorption spectra of ultraviolet light are correlated. Submit My Answers gives Incorrect, Try Again; 5 attempts remaining previous l 9 of 13 I next dbi Continue

Solution

Answer:-

The option is \"2,4,5,6\"

Explaination is given below :-

1. Distribution of DNA- aside from the nucleus, DNA is found in chloroplasts and mitochondria which perform genetic functions. A close correlation exists between the amount of DNA and the number of sets of chromosomes. No such correlation can be observed between gametes and diploid cells for proteins- providing circumstantial evidence favoring DNA over proteins as the genetic material for eukaryotes.

2. Mutagenesis- (Indirect evidence) UV light is capable of inducing mutations in the genetic material. Bacteria can be irradiated with various wavelengths of UV light and the effectiveness of each wavelength is measure by the number of mutations it induces. Both DNA and RNA absorb UV light most strongly at 260 nm which is also the most mutagenic wavelength. Protein most strongly absorbs at 280 nm, but no significant mutagenic effects are observed at this wavelength.

3. Eukaryotic Data- strongest evidence has been provided by the application of molecular analysis referred to as recombinant DNA technology. Segments of eukaryotic DNa corresponding to specific genes are isolated and literally spliced into bacterial DNA. Such a complex is inserted into a bacterial cell and its genetic expression is monitored. If a eukaryotic gene is introduced, the presence of the corresponding eukaryotic protein product demonstrates directly that this DNA is not only present, but functional in a bacterial cell.

4.Genetic Material :- DNA is a genetic material of Bacteria and phages. the phages attached to the surface of a host bacterial cell and injected some substance (either DNA or protein) into the host. This substance gave \"instructions\" that caused the host bacterium to start making lots and lots of phages—in other words, it was the phage\'s genetic material.