What phenotypic ratio would you expect as a result of a test cross between a dihybrid organism and one that is homozygous recessive for alleles at two independent loci?

A) 3:1
B) 1:2:1
C) 1:1:1:1
D) 9:3:3:1
E) 9:4:2:1


C

Biology & Microbiology

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Which of the following describe a role that ethylene plays in plant physiology. Check all that apply.  

_____  Retarding stem and root elongation. _____  Hastening the ripening of fruit. _____  Inhibition of leaf abscission. _____    Inhibition of lateral bud growth. _____  Accelerates the loss of damaged fruits.

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When bacilli in a chain fold back upon each other like a hinge, this cellular arrangement is termed a ________.

A. sarcina B. tetrad C. palisade D. strep E. staph

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Why is the axon the only cellular projection in sensory neurons?

What will be an ideal response?

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Cystitis is an infection of the

a) urinary bladder. b) urethra. c) ureter. d) kidney.

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