The principle of dominance is derived from Mendel's conclusions. Which of the following describes the law of segregation? Some alleles of a gene are dominant, and others are recessive
If the recessive allele appears on one of the genes, the offspring will display the trait
Both dominant alleles need to be present for the offspring to inherit the dominant trait
Only 1
1, 2, and 3
2 and 3
1 and 2

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.