A pedigree chart shows a trait appearing in every generation, affecting both males and females equally. Which type of inheritance is most likely being demonstrated?
Researchers are comparing the DNA of two different tissues in the same human body—a muscle cell and a liver cell. Which statement best explains why these cells look and function differently?
In a certain species of lab mice, gray fur (G) is dominant to white fur (g). If two heterozygous mice (Gg) are crossed, what is the probability that an offspring will have white fur?
If a somatic cell of an organism contains 40 chromosomes, how many chromosomes will be found in a gamete produced by the same organism?
The Himalayan rabbit carries a gene for fur pigmentation that is sensitive to temperature. When the rabbit is kept in a warm environment, its fur grows in white. However, if a patch of fur is shaved and an ice pack is applied to the skin, the new fur grows in black. Which statement best evaluates this phenomenon in the context of heredity?