Mendel and the re-discoverers of genetics Correns, de Vries and Tschermak identified discrete traits whose patterns of inheritance followed interpretable rules.  But most traits found in animals and plants were continuous, not discrete, and tended to mix in offspring – when you cross a Labrador and a poodle (two breeds […]

1. Explain the sort of knowledge that can be learnt by a biologist from the study of DNA mutations or using DNA mutations. 2. Is oxygen present in high or low quantities in medium with a lowO-R potential? 3. A mule is produced by mating a male donkey with a […]

Question: A somatic cell of a given plant species contains 3 billion base pairs of nuclear DNA and 12 functional centromeres when observed at the conclusion of stage G2 of the cell cycle. What is the number of base pairs of the C-value? What is the number of nuclear chromosomes per […]

A 31 year old man became feverish 4 days after arriving at a vacation resort in Idaho. During his stay he ate at two restaurants that were not associated with the resort. AT the resort he drank soft drinks with ice, used the hot tub and went fishing. The resort […]