If black fur color is controlled by a dominant allele (B) and brown by its recessive allele (b), give the
genotypes of the parents and offspring of a cross of a black male with a brown female that produces
1/2 black offspring and 1/2 brown offspring. What will be an ideal response?
Black male (Bb) ? brown female (bb)
offspring: black (Bb) brown (bb)
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In all cells, genes are composed of
A) nucleic acids. B) mRNA. C) proteins. D) chaperones.
What are at least 3 adaptations of salt marsh plants for withstanding salty conditions?
What will be an ideal response?
Which of the following structures in the life
cycle of a plant are diploid?
a. spores b. gametophytes c. gametes d. sporophytes e. all of these are diploid
Experiments by Steve Tanner and colleagues (2000 ) with gray tree frogs demonstrated that female frogs preferentially mated with male frogs exhibiting ________
A) many short, repetitive calls over single long calls B) longer calls rather than shorter calls C) larger body size over small body size D) louder calls over softer calls E) trilling calls over constant calls