Independent assortment means that the ____
a. phenotypes are often a blending of two independent genotypes
b. segregation of one gene pair depends on the segregation of another gene pair
c. gametes produced must be heterozygous in all cases
d. segregation of one gene pair occurs as if no other gene pair was present
e. phenotypic ratio in F2 will be the same for dihybrid and monohybrid crosses
d
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A truck driver is transporting a load of unripened bananas in an air-tight vehicle, and decides to stop and eat an apple
He also checks on his cargo, opening the back of his truck and walking around the unripened bananasâ€"all while still snacking on his apple. When he makes his final delivery, he opens the back of his truck to find that all of his bananas have ripened. Why? Select all correct choices. A. Opening the back of the truck exposed the bananas to oxygen. B. Exposure of the bananas to the apple (and its ethylene) instigated their ripening. C. The bananas would naturally ripen over time, even in an air-tight environment. D. Opening the back of the truck exposed the bananas to light of red wavelengths.
At which level(s) is eukaryotic gene expression regulated?
a. transcription b. translation c. posttranscription d. posttranslation e. all of these
Which organ releases hormones that assist with the development of the immune system and continues to shrink as an individual matures and ages?
a. thymus b. thyroid c. thalamus d. testes
Taxonomists today tend to group organisms
into the same category based on
a. similar morphology b. similar behavior c. similar geographic distributions d. similar DNA sequences e. similar eating habits