CAN SOMEONE CHECK MY WORK?? THANK YOU!! I WILL GIVE A WONDERFUL RATING!!!!!!! QU

Question

CAN SOMEONE CHECK MY WORK?? THANK YOU!! I WILL GIVE A WONDERFUL RATING!!!!!!! QUESTION 1 Which of the following is TRUE regarding mitochondrial disorders? All disorders involving the mitochondria are inherited through one?s mother. Lebers hereditary optic neuropathy is a mitochondrial disorder. Hemochromatosis is a mitochondrial disorder. All of the above are TRUE. QUESTION 2 What does the term penetrance refer to? There are virus strains that spread globally more easily than others. Not everyone inheriting a certain genotype will get a disease. Some chemical mutagens affect germ-line instead of somatic cells. Certain drugs are more effective than others in curing genetic disorders. QUESTION 5 What exactly is special about a dideoxynucleotide used in Sanger DNA sequencing? It will insert into DNA like an intercalating agent, causing the DNA to be visible under Uvlight. It will allow one to compare genes that are highly vs. not highly expressed. It will block transcription by RNA polymerase. It will terminate replication when inserted into a growing DNA molecule.

Explanation / Answer

Q 1). Mitochondrail DNA is haploid and isinherited from maternal side. Thus, all the diseases carried by mitochondria are inherited from one's mother.

thus, the correct option is (a)

Q2) In genetics "penetrance" refert to the proportion of people carrying gene mutations that also exhibit phenotypic changes or clinical symptoms. This means, all the people carrying gene mutations or genes that can cause a particular disease are not expessed by all the people but only a proportion of people exhibit the phenotypic characters while the others does not.

thus, the correct option is (b)

Q5) Dideoxynucleotides are chain terminationg nucleotides. They can result in hte formation of DNA fragments of diffeing length that can be visible under UV light, DNA sequence an be read from X-ray film.

Thus, the correct option is (a)

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