Assume that in guinea pigs, the brown coat color allele (b) is dominant over red (b), and the solid color allele (s) is dominant over spotted (s). the f1 offspring of a cross between true-breeding brown, solid-colored guinea pigs and red, spotted guinea pigs are crossed. what proportion of their offspring (f2 generation) would be expected to be red and solid-colored?

Which codon is the code for the amino acid histidine (his)?

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to