Is it possible for a recombination event to turn Muller's ratchet "forward" in the popu-lation of chromosomes below? The dots on the chromosomes indicate deleterious mu-tations. Indicate the crossing-over event by a cross on the figure

What will be an ideal response?


ANS:
A crossing-over between chromosomes C and D between the first and the second mu-tation of chromosome D

Biology & Microbiology

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In bacterial cell division, the cell divides into two nearly equal halves.  This process is referred to as:

A. binary fission B. mitosis C. fusion D. meiosis E. cytokinesis

Biology & Microbiology

Boron has an atomic number of 5. How many

vacancies does boron have in its outer shell?

a. 1 b. 2 c. 3 d. 4 e. 5

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DNA replication is ____

a. redundant b. semiconservative c. progressive d. conservative e. repetitive

Biology & Microbiology

Adaptive explanations for behaviors seek to get at ultimate causes for those behaviors.

Answer the following statement true (T) or false (F)

Biology & Microbiology