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A physical trainer wants to compare the effects of two types of exercise programs on weight loss. He divides his clients into two groups: one focused on short-interval circuit training and one focused on a cardio warm-up followed by a free-weight workout. Without his knowledge, some of his clients have […]

1. Mitosis A. This part of the lab is based on an activity produced by the Biology Project, found at http://www.biology.arizona.edu/cell bio/activities/cell cycle/cell cycle.html. Please go to that site, read the page and then click on Next at the bottom of each page until you have read the entire lab […]

In a cross in Drosophila, a female heterozygous for the autosomally linked genes a, b, c, d, and e (abcde/+++++) was testcrossed with a male homozygous for all recessive alleles. Even though the distance between each of the loci was at least 3 map units, only four phenotypes were recovered, […]

QUESTION 1In humans, a gene that has been identified as causing a type of skin cancer is theA. sonic hedgehog.B. superwoman echidna.C. mutant mole rat.D. mutant superman.E. superhero aardvark. QUESTION 2An allele isA. the main factor determining a trait.B. always one of a pair.C. always recessive.D. an alternate form of […]