The following F1 cross is made: BBGg × Bbgg. Which is not a possible outcome in the F2 generation?
A. BBGg
B. BbGg
C. BbGG
D. BBgg
Answer: C
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NOTE: The following questions with Punnet squares reflect on a consistent observation that students can commonly use Punnet squares easily, but frequently make mistakes setting them up
STEM/DATA In a population of wild-caught flies, you are focusing on the trait of bristle length. You find that the trait varies between two phenotypes where some flies have long bristles while others have very short bristles. You set up several matings between individual flies from this mixed population and observe the following results in the offspring: Mating # male parent female parent offspring phenotypes 1. long long all long 2. long long all long 3. short short some long, some short 4. short short all short 5. long short all short 6. long short some long, some short 7. short long some long, some short 8. short long all short The male and female offspring have the same chance of having either long or short bristles in each cross. Which phenotype is recessive? A. long B. short
Understanding how to inhibit myostatin production may lead to effective treatment of ____
a. increased muscle cell division b. addition of muscle companion cells c. stretching of individual muscle cells d. synthesis of new protein filaments e. overproduction of myostatin
The secretion of tears, milk, saliva, and earwax is a
function of what tissue? a. epithelial b. loose connective c. lymphoid d. nervous e. adipose
In eukaryotic cells, ________ occurs in the nucleus, resulting in the production of mRNA, which then travels to the ribosome for ________ into an amino acid chain
Fill in the blank(s) with correct word