Given its mode of reproduction and internal structures, which of the following should be expected to occur in Giardia at some stage of its life cycle?
1)separation (segregation)of daughter chromosomes
2)crossing over
3)meiosis
A) 1 only
B) 3 only
C) 1 and 2
D) 1 and 3
E) 2 and 3

Question

Quizplus · Accepted Answer

Giardia is a unicellular organism that reproduces asexually through binary fission, where one cell divides into two genetically identical daughter cells. As there is no sexual reproduction, meiosis and crossing over are not expected to occur. However, separation of daughter chromosomes (known as segregation) is necessary for binary fission to occur. Therefore, the expected occurrence in Giardia would be separation (segregation) of daughter chromosomes, and not meiosis or crossing over.

Given Its Mode of Reproduction and Internal Structures, Which of the Following