In Drosophila melanogaster, the wild-type eye colour is dark red. A fly from a true-breeding strain with scarlet eyes is crossed to a fly from a true-breeding strain with brown eyes. All the offspring have dark red eyes. The F1 flies are intercrossed to produce an F2 generation. This comprises 472 flies with dark-red eyes, 138 with scarlet eyes, 145 with brown eyes and 45 with white eyes. A. Three genes are segregating in this cross
B. Two independently assorting genes are segregating in this cross
C. Two linked genes are segregating in this cross
D. The phenotypes result from interactions between genes
E. The brown eye colour is the result of epistasis

sorry but that is t hard otherwise I would have helpef

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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