Similar to single-gene traits, traits determined by multiple genes also show the expected 3:1 ratio of phenotypes in the progeny between two heterozygotes

A. true
B. false


B

Biology & Microbiology

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The plant hormone that promotes fruit ripening is:

a. auxin b. gibberellin c. cytokinin d. systemin e. ethylene

Biology & Microbiology

Down syndrome is a trisomy that involves

chromosome number

a. 3. b. 5. c. 15. d. 19. e. 21.

Biology & Microbiology

Development ceases at birth.

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

Biology & Microbiology

Genes with promoters that are constitutively expressed and needed in all cells are called

a. universal factors. b. silencers. c. activators. d. housekeeping genes. e. enhancers.

Biology & Microbiology