Select the correct meaning for the following pedigree symbol.





A) Unaffected male

B) Unaffected female

C) Mating

D) Affected male

E) Affected female


D) Affected male

Biology & Microbiology

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Two genes within an organism that arose from the duplication of a single gene in an ancestor are ________________. 

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A mechanism in many salt plants to control osmotic pressure is:

a. to remain as osmoconformers. b. to have succulent parts. c. to dry out. d. to go dormant during periods of high salinity. e. to drop leaves.

Biology & Microbiology

Which of the followings are required for conjugation

A. a plasmid B. a piece of Donor DNA C. a virus D. Pili E. Cell-to-cell direct contact A. A and B B. B and C C. A, C and E D. A, D and E E. B, D and E

Biology & Microbiology

A (colony/plaque/prophage) is a clear zone on a bacterial lawn where cells have been killed by the activity of a bacteriophage

What will be an ideal response?

Biology & Microbiology