Gene Tox

Question 1

transitions

Answer 1

where the change is purine for purine or pyrimidine for pyrimidine

Purines = Adenine and Guanine
Pyrimidine = Cytosine, Thymine, Uracil

Klaassen, Curtis D.; Watkins, John B.. Casarett & Doull’s Essentials of Toxicology, Third Edition (Lange) . McGraw-Hill Education. Kindle Edition.

Question 2

transversions

Answer 2

where the change is purine for pyrimidine or vice versa.

Purines = Adenine and Guanine
Pyrimidine = Cytosine, Thymine, Uracil

Klaassen, Curtis D.; Watkins, John B.. Casarett & Doull’s Essentials of Toxicology, Third Edition (Lange) . McGraw-Hill Education. Kindle Edition.

Question 3

nondisjunction

Answer 3

occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis

can occur during either meiosis I or II