In guinea pigs, short hair (H) is dominant to long hair (h) and black eyes (B) are dominant to red eyes (b). A male guinea pig that is heterozygous for both traits is crossed with a female that is long-haired and red-eyed. What are the expected phenotypes of their offspring and in what proportion?

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !